feat(e2e): run seeded Dreamer evaluations - #87
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📝 WalkthroughWalkthroughAdds the Dreamer evaluation lane with two scenarios, live task execution, report classification, repeated-run variance aggregation, corpus validation, CLI controls, artifacts, and documentation. ChangesDreamer evaluation lane
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🔵 Low · up to The evaluation reporting change can omit case-only differences in retained content, which may underreport variance between runs. This is a bounded correctness issue that is mergeable with explicit owner awareness or a follow-up fix. Sequence Diagram(s)sequenceDiagram
participant CLI
participant Runner
participant Anthropic
participant Harness
participant Variance
CLI->>Runner: Run selected scenario and task
Runner->>Harness: Seed claims and provision evaluation state
Runner->>Anthropic: Invoke Dreamer task
Anthropic-->>Runner: Return task output
Runner->>Harness: Read receipts and validate state
Runner-->>CLI: Write run report
CLI->>Variance: Aggregate repeated run reports
Variance-->>CLI: Write variance artifact and status
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✅ Passed checks (4 passed)
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| const logicalByPublic = new Map(report.poolBefore.map((claim) => [claim.publicClaimId, claim.claimId])); | ||
| for (const [publicId, verdict] of observedVerdicts(report)) { | ||
| const claimId = logicalByPublic.get(publicId); | ||
| if (claimId === undefined) continue; | ||
| const histogram = counts.get(claimId) ?? new Map<string, number>(); | ||
| histogram.set(verdict, (histogram.get(verdict) ?? 0) + 1); | ||
| counts.set(claimId, histogram); | ||
| } |
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When a repeat has no parseable manifest, observedVerdicts contributes nothing for that run, so a claim verified identically in two runs and missing in a third is reported as { verified: 2, disagreement: false } despite repeatCount: 3; if every repeat lacks output, the claim disappears from the artifact entirely. Include every poolBefore claim for every run, using a missing/unscored bucket, so the variance artifact does not conceal run-to-run output loss.
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Fixed in 46e8af5. aggregateDreamerEvalVariance now walks the union of poolBefore claim ids per run and records a missing bucket whenever that run produced no verdict for a claim, so the buckets for a claim always sum to repeatCount.
Your two cases are now covered by tests in variance.test.ts: a claim verified in two runs and lost in a third reports { missing: 1, verified: 2 } with disagreement: true, and a claim missing from every repeat stays in the artifact as { missing: 2 } instead of disappearing.
One detail worth naming: public claim ids are minted per run, so the population is keyed by logical claim id and each run resolves its own public ids through its own capture.
| "claimId": "claim-rejected-redis", | ||
| "files": ["docs/storage.md"], | ||
| "independent": false |
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For claim-rejected-redis, the only fixture evidence is docs/storage.md, but the production map prompt explicitly instructs the model that a Markdown file which only describes a fact is not a backing file and that such a claim must be marked independent="true". A model following that contract will return no files and independent: true, which this gold deterministically scores as wrong-independence or wrong-mapping; provide an implementing code fixture or change this expected result to file-independent.
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Fixed in 46e8af5, using your first option. Confirmed the conflict in map-memories-prompt.ts: the prompt tells the model "A markdown doc (.md), a PARITY/notes file, or a test that only DESCRIBES an external fact is NOT a backing file ... mark it independent="true"", and docs/storage.md was the claim's only fixture evidence, so a compliant run returned independent: true against gold independent: false and scored wrong-independence deterministically.
claim-rejected-redis now carries an implementing code fixture instead:
// Redis was evaluated and rejected; SQLite remains the authoritative store.
export const AUTHORITATIVE_STORE = "sqlite";The mapping precondition, the verify gold's expectedFiles, and the map gold all move to src/storage.ts, and the prose file is gone so the observed set cannot be ambiguous under scoreMapManifest's set equality. Keeping both files would have traded a deterministic failure for a coin flip between one path and two.
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| }); | ||
| const messages = Array.isArray(messagesResponse.data) ? messagesResponse.data : []; | ||
| const transcript = JSON.stringify(messages); | ||
| if (!expectedPublicIds.every((publicId) => transcript.includes(publicId))) continue; |
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CRITICAL: Multi-batch child session matching requires all pool claim IDs in every batch session
expectedPublicIds.every((publicId) => transcript.includes(publicId)) requires every in-scope claim ID across the entire task to appear in each child session's transcript. When a task partitions claims into multiple batches (e.g. pools exceeding 50 claims for verify or 80 claims for map-memories), each child session is only dispatched a subset of public IDs. Consequently, all batch sessions are rejected by this check, resulting in 0 captured messages and an ERROR: harness-failure outcome.
Match child sessions by checking whether the transcript contains any of the expected batch public IDs or match against per-batch ID partitions.
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Investigated — this cannot happen for any scenario the contract accepts, so I did not change the matching rule. Evidence:
MAX_POOL_CLAIMS = 50incontract.tscaps a declared pool, andparseTaskrequires in-scope plus skipped to partition that pool, so in-scope is at most 50.- Production batch sizes are
VERIFY_BATCH_SIZE = 50,MAP_BATCH_SIZE = 80,CLASSIFY_CHUNK_SIZE = 100. Every one is at or above the pool cap, soexpectedBatchCountis always 1 and no child is ever dispatched a subset. - The classify chunker does also split on rendered prompt bytes, but only on the module route:
classify.tspassesNumber.POSITIVE_INFINITYas the byte budget on the child route this lane drives, which degrades to count-only chunking.
The premise "pools exceeding 50 claims for verify or 80 for map-memories" is unreachable — parsePool rejects a 51-claim pool with pool.claims: count-invalid before any of this runs.
What was real is that the invariant was implicit: it held only because MAX_POOL_CLAIMS happened to equal the smallest batch size, and raising the cap would have made your scenario live. 46e8af5 pins it two ways — a contract.test.ts case asserting MAX_POOL_CLAIMS <= TASK_BATCH_SIZE[task] for every task, and a partition-unsupported refusal in parseTask for a task whose in-scope set exceeds its batch size. If either side moves, the affected scenario now fails at parse time instead of spending model credits and reporting ERROR: harness-failure.
| ORDER BY id`, | ||
| ).all(`dreamer-${task}`) as ReceiptRow[]; | ||
| return rows.flatMap((row) => | ||
| logicalClaimIds.map((claimId) => ({ |
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WARNING: Cartesian product in readReceipts multiplies every receipt row by all logical claim IDs
readReceipts maps every receipt row against all logicalClaimIds via rows.flatMap((row) => logicalClaimIds.map(...)). claim_operation_receipts logs one row per batch operation. In multi-batch runs, this creates (receipt rows) × (claims) entries, duplicating receipts and attributing unrelated batch outcomes to all claims.
Query claim_operation_effects or associate receipts with specific batch claims so each claim is linked only to its corresponding receipt outcome.
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Investigated — same root as the child-matching finding, and it does not reproduce. A run always has exactly one batch (MAX_POOL_CLAIMS = 50 is at or below every production batch size; details in my reply on captureChildren), so the receipt rows a run reads belong to the batch that covers precisely task.expectedInScopeClaimIds. Attributing that batch's outcome to each in-scope claim is what the receipt actually records, not a cross product of unrelated batches.
I also checked what classifyDreamerRun does with the value: it only looks for receipts.find(r => r.outcome === "stale") and compares stale.requestDigest. It never reads claimId, so duplication cannot change a classification.
claim_operation_effects is the right join for per-claim attribution and I considered switching to it, but an inner join there would drop exactly the receipts the stale check needs — a stale operation did not apply, so it has no effect rows — and correcting that means splitting DreamerReceiptEvidence into a receipt-level record for the classifier and a claim-level record for the report, cascading into the report contract and its tests. That is not worth it for a shape the accepted scenario space cannot produce; the partition-unsupported guard added in 46e8af5 keeps it that way.
Worth noting the one nuance you are right about: if a run ever produced two receipt rows (a rejection plus an apply), each claim would appear twice in receiptOutcomes with different outcomes and no digest to tell them apart. Both entries are true, but the artifact reads as contradictory. Left as-is for now since nothing consumes receiptOutcomes beyond the report.
| classification = outcome("ERROR", "harness-failure"); | ||
| } | ||
| } finally { | ||
| if (acquired !== null && db !== null) releaseLease(db, holderId, leaseKey); |
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WARNING: Unhandled exception in releaseLease can abort subsequent resource cleanup and state restoration
In the finally block of runDreamerEvalTask, if releaseLease throws an exception (such as a database lock or busy error), execution halts before running setKeepSubagents(priorKeepSubagents), db?.close(), and harness.dispose(). This risks leaking global keepSubagents process state and dangling test harness processes.
Wrap individual cleanup operations in independent try...catch blocks.
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Fixed in 46e8af5. Each cleanup step in the finally block now stands alone, so a throw from lease release no longer skips setKeepSubagents(priorKeepSubagents), db.close(), or harness.dispose(), and each failure is reported to stderr rather than swallowed.
A cleanup failure deliberately does not change the run's classification: the report's evidence is already captured by that point, and what a leak damages is the runs that follow, so downgrading this run's status would misattribute the fault.
| type DreamerRunClassificationInput, | ||
| } from "./runner"; | ||
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| const validManifest = `<classifications> |
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WARNING: Malformed validManifest constant produces harness failure for baseline test input
validManifest uses <classifications> with <memory id="..." ... /> and fictional IDs (mem-1, mem-2). The production parser (classify-prompt.ts) requires <classify> with claim="<publicClaimId>", matching the fixture pool's public IDs (mcm_true, mcm_independent). Because the manifest fails parsing, classifyDreamerRun(input()) actually evaluates to ERROR: harness-failure rather than PASS, leaving the happy path untested.
Update validManifest to valid <classify> XML using fixture public claim IDs.
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Fixed in 46e8af5. Confirmed exactly as described — I ran the old constant through classifyDreamerRun with the rest of input() unchanged and it returned:
{"status":"ERROR","reason":"harness-failure"}
parseClassifyManifest reads a <classify> root and takes each id from claim, and validateClassifyManifest demands exact coverage of the scored ids, so <classifications> with id="mem-1" never parsed.
The constant is now a valid manifest over the fixture's public claim ids with values inside dreamerScorerFixture.classifyGold:
<classify>
<memory claim="mcm_true" importance="70" scope="project" shareable="true" />
<memory claim="mcm_independent" importance="85" scope="universe" shareable="true" />
</classify>I also added the happy-path test the file was missing — it asserts PASS with reason: null and pins the parsed evidence — so the baseline can no longer silently stop being valid. The tests that passed before still pass: each asserts a check that runs before scoring.
| "claimId": "claim-cache-primary", | ||
| "importance": { "min": 65, "max": 85 }, | ||
| "scope": "project", | ||
| "shareable": false |
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WARNING: Classification gold marks standard project rules as shareable: false, contradicting classifier prompt rules
CLASSIFY_SYSTEM_PROMPT instructs models that standard project knowledge (architecture, configuration limits, design rules) free of personal/local/sensitive details should be marked shareable="true". However, the classify gold assigns shareable: false to all project claims (such as claim-cache-primary and claim-retry-attempts), which causes a compliant classifier to be scored as FAIL: wrong-classification.
Update non-sensitive project rule expectations to shareable: true or include explicitly private/machine-local details in claims intended to test shareable: false.
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Fixed in 46e8af5. Confirmed both halves: CLASSIFY_SYSTEM_PROMPT says shareability is about exposure and that most project knowledge — "architecture, design rules, conventions, constraints, file locations, hard-won gotchas" — should be shareable="true", reserving false for what is tied to the user or their machine. I also ran every core-pool claim through hasShareabilitySensitiveText and all eleven return false, so the host's fail-closed override would not have rescued the gold either: a compliant shareable="true" scored FAIL: wrong-classification.
All eleven classify gold entries are now shareable: true. The claims stay seeded sharing: "private", which also closes the omission hole codex raised separately — since scoreClassifyManifest resolves an omitted attribute from the stored value, a model must now actually report shareable="true" rather than inherit it.
| parsedManifest: | ||
| root.parsedManifest === null | ||
| ? null | ||
| : Array.isArray(root.parsedManifest) |
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WARNING: parseRunReport accepts array manifests without validating item element types
When root.parsedManifest is an array (used by map-memories and classify-memories), Array.isArray(root.parsedManifest) returns the raw array directly without checking that its elements are objects. Passing primitive values like [123] or [null] bypasses validation.
Validate each array item with record(item, ${label}.parsedManifest[${index}]) before returning.
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Not reproduced — parseManifestEvidence already validates every array item. parseRunReport does not return root.parsedManifest directly; it routes through parseManifestEvidence, whose non-verify branch is array(value, label).map((entry, index) => { const item = record(entry, entryLabel); ... }), and record() in contract-primitives.ts fails with object-required for anything that is not a non-null, non-array object.
I checked the exact inputs you named against parseRunReport:
[123] => REJECTED: probe.parsedManifest[0]: object-required
[null] => REJECTED: probe.parsedManifest[0]: object-required
["str"] => REJECTED: probe.parsedManifest[0]: object-required
[[]] => REJECTED: probe.parsedManifest[0]: object-required
[true] => REJECTED: probe.parsedManifest[0]: object-required
That is the same diagnostic your suggested record(item, ...) call would produce, because it is already the call being made. There is also a second gate behind it: a non-null parsedManifest must reparse from rawManifest and match under canonicalJson, so a hand-built primitive array could not survive even if item validation were absent.
Let me know if you were reading a different branch — I checked contract.ts at the current head.
| } | ||
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| function opencodeVersion(): string { | ||
| const result = Bun.spawnSync(["opencode", "--version"], { |
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WARNING: opencodeVersion throws an unhandled spawn exception if opencode is missing from PATH
Bun.spawnSync(["opencode", "--version"], ...) throws an ENOENT exception if the opencode binary is not found on PATH, crashing the CLI runner before any evaluation tasks execute.
Wrap the spawn call in a try...catch block to fall back to "unknown".
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Fixed in 46e8af5. Verified the behaviour first rather than assuming, since Bun.spawnSync could plausibly have reported failure instead:
THREW: Error: Executable not found in $PATH: "definitely-not-a-real-binary-xyz"
So an absent opencode did abort the CLI before any task ran. It is now wrapped, returning "unknown" — the value the report already accepts for that provenance field.
| if (entry === null || id === null) continue; | ||
| if (report.task === "map-memories") { | ||
| const files = Array.isArray(entry.files) | ||
| ? entry.files.filter((file): file is string => typeof file === "string").sort() |
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WARNING: observedVerdicts does not deduplicate file paths when formatting map-memories verdicts
scorer.ts evaluates mapping equivalence by set equality (sameSet), ignoring duplicate entries. If an LLM response emits duplicate file paths in one run (e.g. ["src/cache.ts", "src/cache.ts"]), sorting without deduplication formats the verdict as files:src/cache.ts,src/cache.ts, creating a false disagreement against runs formatting files:src/cache.ts.
Deduplicate files via [...new Set(...)] before joining.
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Fixed in 46e8af5. scoreMapManifest compares observed paths to gold with sameSet, so duplicates are already immaterial to PASS/FAIL, and encoding them made two runs with the same applied mapping look like disagreement.
Mapping verdicts now go through a mapVerdict helper that dedupes before sorting, with a test asserting ["src/cache.ts"] and ["src/cache.ts", "src/cache.ts"] land in the same bucket.
| export function aggregateDreamerEvalVariance(reports: readonly DreamerEvalRunReport[]): DreamerVarianceArtifact { | ||
| const first = reports[0]; | ||
| if (first === undefined) throw new Error("variance requires at least one report"); | ||
| const systemIdentity = JSON.stringify(first.system); |
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WARNING: JSON.stringify object key order sensitivity in system tuple comparison
Comparing JSON.stringify(report.system) !== systemIdentity depends on object key insertion order. If reports are deserialized or constructed with different key orders, aggregateDreamerEvalVariance throws an error despite identical system properties.
Compare individual fields of DreamerSystemTuple explicitly.
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Fixed in 46e8af5. Comparison is now field by field through a systemIdentity helper over the five DreamerSystemTuple fields, with a test that rebuilds the tuple in reverse key order and asserts it is accepted.
For accuracy on the current risk: every path that produces a DreamerEvalRunReport today is already order-stable — parseSystem reconstructs the object with a fixed literal key order, and systemTuple in the runner uses the same order — so this was latent rather than live. It is still worth removing, because the export takes readonly DreamerEvalRunReport[] from any caller and nothing in the type says key order is load-bearing.
| const workdir = mkdtempSync(join(tmpdir(), "dreamer-eval-corpus-")); | ||
| try { | ||
| const seeded = await seedDreamerEvalTask({ db: database, scenario, task, workdir }); | ||
| expect(seeded.preflight.inScopeClaimIds.sort()).toEqual([...task.expectedInScopeClaimIds].sort()); |
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SUGGESTION: Incomplete preflight assertion in dev corpus tests (omits mode and skipped claim ID checks)
expect(seeded.preflight.inScopeClaimIds.sort()).toEqual([...task.expectedInScopeClaimIds].sort()) mutates inScopeClaimIds in place and omits assertions for seeded.preflight.skippedClaimIds and seeded.preflight.mode. For broad verification cycles like dme-verify-broad-history, validating seeded.preflight.mode === "broad" is essential.
Copy arrays before sorting and assert skippedClaimIds and mode against the scenario task expectations.
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Fixed in 46e8af5 — arrays are copied before sorting, and the test now asserts skippedClaimIds and mode against the scenario task.
One correction on the impact: preflightDreamerEvalTask already refuses both cases itself, via assertExpectedSet("skipped claims", ...) and a mode check that throws DreamerEvalSeederError("gate-mismatch"), so seedDreamerEvalTask would have thrown before the assertion ran and a broad cycle preflighting as incremental could not have reached a live run. The added assertions restate that contract where the test names it, rather than leaving the skipped set and the gate branch proven only by the absence of a throw inside the seeder.
The in-place sort() was real, if harmless here since seeded is discarded — an assertion that reorders the value it is checking proves nothing about what production returned.
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One resolution, plus two corpus corrections the merged contract exposed. packages/e2e-tests/src/dreamer-eval/contract.ts: both sides widened `parsedManifest` to admit the array shape map and classify parse to. Main's version supersedes this branch's, so it is taken wholesale: it carries the same widening through a named `ParsedManifestEvidence` type and then validates the value per task, checks entry fields and id uniqueness, requires the ids to name observed claims, and reproduces the evidence from the captured manifest bytes. This branch's inline `Array.isArray` widening added nothing on top. The runner's cast to the old shape goes with it, since the field is now typed. The verify gold in both dev scenarios predated `expectedFiles`, which became a required field after this branch was cut, so each gold claim now declares the mapped files it expects the manifest to report — empty for an archive verdict, which is what the contract requires there. dme-verify-broad-history declared `claim-history-9` skipped because it carries a seeded `verified` outcome. That models incremental behavior, not broad: the seeder sets the broad watermark to `max(verifiedAt) + 1` precisely so a verified claim is re-swept, and its comment calls that "the one behavior broad exists to differ on". The claim moves into the broad partition with a gold entry, leaving only the file-independent claim skipped. `dev-corpus.test.ts` confirms this against production rather than against the contract: it seeds every task and compares `preflight.inScopeClaimIds` to the declared set. Verified after the merge: 122 dreamer-eval tests pass, `tsc --noEmit` is clean on packages/e2e-tests, the historian-eval and prospective lanes stay green at 293 and 119, and `bun install --frozen-lockfile` reports no changes.
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| "importance": { "min": 65, "max": 85 }, | ||
| "scope": "project", | ||
| "shareable": false |
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Every seeded claim already has an importance inside its gold range and exactly the gold scope/shareability. Because scoreClassifyManifest substitutes poolBefore values for omitted fields, a production-valid manifest can emit only one unchanged attribute per claim and receive PASS without classifying the other attributes at all. This makes the new classification experiment falsely green for a model that merely copies part of the prompt; seed deliberately non-gold starting values or require sufficient observed classification evidence in this evaluation.
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Fixed in 46e8af5. Confirmed the mechanism precisely: every seeded claim's importance sat inside its gold range, memoryScope equalled gold scope, and sharing mapped exactly to gold shareable, so with scoreClassifyManifest substituting poolBefore for omitted fields, a manifest naming one unchanged attribute per claim scored PASS without classifying anything.
Every attribute is now seeded off gold: importance below each range (for example claim-cache-primary 40 against 65-85), memoryScope differing from gold scope for all eleven claims, and sharing: "private" against gold shareable: true. A manifest must now state all three attributes correctly for every claim; inheritance can no longer satisfy any of them.
That is pinned by a new dev-corpus.test.ts case which asserts, per gold claim, that the seeded importance is outside the range, the seeded scope differs, and the seeded shareability differs — so the corpus cannot drift back to being copy-passable without a test failure. The parseClassifyGold shareability-override guard still holds, since no core-pool claim's content trips hasShareabilitySensitiveText, and production preflight still selects the same in-scope set for all three tasks.
| observed.set( | ||
| id, | ||
| `importance:${String(entry.importance)};scope:${String(entry.scope)};shareable:${String(entry.shareable)}`, | ||
| ); |
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When two classify repeats reach the same applied state but one explicitly emits a field and the other omits it, this encoding records values such as scope:project versus scope:undefined and marks the claim as disagreeing. Partial entries are production-valid and scoreClassifyManifest resolves omitted fields from poolBefore, so the variance artifact should apply the same fallback—or compare poolAfter—rather than report syntactic omission as model variance.
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Fixed in 46e8af5, using your first option. Classify verdicts now go through a classifyVerdict helper that mirrors scoreClassifyManifest: omitted attributes resolve from the run's own poolBefore snapshot, and a reported shareable of true is forced false when the content trips hasShareabilitySensitiveText, which is the same override the scorer applies.
A test covers your case — one run stating all three fields and another omitting the two it leaves unchanged now share a single bucket with disagreement: false, instead of recording scope:project against scope:undefined.
I kept the encoding on the applied state rather than comparing poolAfter, so the artifact stays derived from the model's own output and a run whose apply was rejected still shows what it asked for.
| "path": "config/release.ts", | ||
| "content": "export const RELEASE_UPLOAD_CHUNK_MIB = 2;\n" |
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The claim says the 2 MiB setting applies only on the release branch, but the fixture merely defines an unconditional constant, while prepareFixtureRepository initializes and commits a repository without creating or checking out a release branch. A verifier inspecting this repository has no evidence for the load-bearing branch restriction and can reasonably update or archive the claim even though the gold requires verified; create the relevant branch/conditional configuration or remove the unsupported qualifier.
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Fixed in 46e8af5. Confirmed the gap: prepareFixtureRepository only runs git init plus one commit and never creates or checks out a release branch, so the fixture's unconditional RELEASE_UPLOAD_CHUNK_MIB = 2 gave a verifier no evidence for the branch-only restriction while gold demanded verified.
I took the "create the relevant conditional configuration" option rather than dropping the qualifier, since the corpus test requires the branch-specific pressure to stay in the pool. config/release.ts now encodes the condition itself:
export const DEFAULT_UPLOAD_CHUNK_MIB = 8;
export const RELEASE_UPLOAD_CHUNK_MIB = 2;
// The 2 MiB size applies on the release branch only; every other branch keeps
// the default.
export function uploadChunkMib(onReleaseBranch: boolean): number {
return onReleaseBranch ? RELEASE_UPLOAD_CHUNK_MIB : DEFAULT_UPLOAD_CHUNK_MIB;
}The restriction is now readable from the code the claim is mapped to, so the missing git branch is no longer load-bearing. I preferred this to having the seeder create a real branch: that would change fixture construction for every scenario, and assertFixtureFilesCommitted requires the file on HEAD regardless.
Address review findings on the live runner: - Use isRunFatal from the contract instead of re-deriving the run-fatal rule in outcome(), so RUN_FATAL_FAIL_REASONS changes cannot desync the written runFatal flag from parseRunReport's mapping check. - Export VERIFY_BATCH_SIZE, MAP_BATCH_SIZE, and CLASSIFY_CHUNK_SIZE and select per task in expectedBatchCount; the classify branch previously assumed 50 where production chunks at 100. - Export the dreamer child-session titles and build TASK_TITLES from them, so a production rename cannot silently break child capture. - Build the receipt producer and rejection request digest from dreamerManifestIdentity and a new exported autonomousManifestRejectionRequestDigest helper instead of re-implementing the batch id and digest envelope. - Pass fixtureGitEnv() to gitOutput so the fixture tamper guard cannot be redirected by ambient GIT_* variables, and resolve the system tuple before the harness spends model credits so a provenance failure cannot discard a completed run's report artifact. - Drop the unused reconstructPoolEndState helper and its tautological test.
Address review findings on the dreamer eval lane: - Seed every classify attribute off its gold value and mark non-sensitive project knowledge shareable. scoreClassifyManifest resolves an omitted attribute from the claim's stored value, so a pool seeded at gold scored PASS for a model that echoed one unchanged field per claim, while the gold's shareable=false contradicted CLASSIFY_SYSTEM_PROMPT and would have failed a prompt-compliant classifier. - Back claim-rejected-redis with implementing code instead of a prose file. The map prompt tells the model a Markdown file that only describes a fact is not a backing file, so the docs-only fixture deterministically scored wrong-independence against a compliant run. - Encode the release-branch condition in config/release.ts. The fixture defined an unconditional constant while the claim rests on a branch-only restriction the repository carried no evidence for. - Count a repeat that produced no verdict for a claim in the variance histogram instead of dropping it, so a claim verified twice and lost once reads as disagreement and a claim lost in every repeat still appears. - Encode map and classify verdicts the way their scorers compare them: deduplicate paths, and resolve omitted classification attributes from the stored value. Both differences were syntactic and reported production-valid partial output as model variance. - Compare system tuples field by field rather than through JSON.stringify, whose output depends on key insertion order. - Isolate each cleanup step in runDreamerEvalTask so a throw from lease release cannot leak process-global keep-subagents state or a live harness into later runs. - Fall back to "unknown" when opencode is absent from PATH: Bun.spawnSync throws rather than reporting failure, aborting the run while resolving a provenance field the report already treats as optional. - Refuse a scenario task whose in-scope set exceeds the task's production batch size, and pin the pool-cap-to-batch-size bound that makes every accepted scenario single-batch, which is what lets the runner match child sessions by whole-id-set coverage. - Give runner-classify.test.ts a valid <classify> manifest over the fixture's public claim ids and assert the PASS path. The prior constant used a shape the production parser rejects, so the baseline input scored ERROR:harness-failure and the happy path was untested. - Copy preflight arrays before sorting in dev-corpus.test.ts and assert the skipped set and gate mode where the test names them.
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| input.invocation.providerId && input.invocation.modelId | ||
| ? `${input.invocation.providerId}/${input.invocation.modelId}` | ||
| : null; | ||
| if (actualModel !== input.pinnedModel) return outcome("ERROR", "fallback-engaged"); |
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When a completed invocation uses an unexpected model and its valid manifest archives a gold-true claim, scoreManifest has already classified the run as FAIL:wrong-archival, but this return replaces it with ERROR:fallback-engaged and resets runFatal to false. Consequently dreamerEvalExitCode returns 1 rather than the documented safety exit 2 even if that fallback manifest was successfully applied; retain the fatal archival classification while also recording the model mismatch.
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Fixed in 82ad822. Confirmed the mechanism: isRunFatal is true only for status === "FAIL" with wrong-archival, so returning outcome("ERROR", "fallback-engaged") cleared runFatal, and dreamerEvalExitCode reports 1 instead of the safety exit 2 — an invalid experiment where a destructive one happened.
The model-mismatch check is now skipped when the score is run-fatal, so the fatal classification survives and the run still continues through the receipt checks (apply-not-applied and the rejection-digest branch), which returning early would have skipped.
A test pins it: the same gold-true archival manifest reports FAIL: wrong-archival with runFatal: true both on the pinned model and on anthropic/claude-fallback. I verified it fails against the previous ordering.
On "while also recording the model mismatch" — I did not add that. The report carries one reason, and a second field is a contract change I did not want to make for this; the fatal classification is strictly the louder of the two signals, so nothing actionable is lost.
| * verdict from a run that emitted the same set once. | ||
| */ | ||
| function mapVerdict(entry: Record<string, unknown>): string { | ||
| if (entry.independent === true) return "independent"; |
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For a file-independent claim, the parser accepts both independent="true" and a nonempty files attribute, and scoreMapManifest checks that file set after checking independence. Thus a clean independent result and one containing spurious files can score differently, yet this early return puts both in the same independent bucket and hides the repeat disagreement. Encode the emitted file set alongside independence.
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Adopted in 82ad822, though the premise does not hold as stated: parseMapMemoriesManifest normalizes the two fields against each other rather than accepting both. Its output is
files: independent && files.length === 0 ? [] : files,
independent: independent && files.length === 0,so independent="true" with a nonempty files attribute parses to independent: false with the files kept. I checked it directly:
<memory claim="mcm_a" independent="true" files="src/x.ts,src/y.ts"/>
=> { publicClaimId: "mcm_a", files: ["src/x.ts","src/y.ts"], independent: false }
<memory claim="mcm_b" independent="true"/>
=> { publicClaimId: "mcm_b", files: [], independent: true }
A parsed independent: true entry therefore always has an empty file set, and parseRunReport requires parsedManifest to reparse from rawManifest and match under canonicalJson, so the coupling holds for every report the CLI path produces.
I still took your encoding, because it is less code than the branch it replaces and does not depend on that invariant: mapVerdict now emits independent:<bool>;files:<canonical set> unconditionally, so a claim's bucket carries both things the scorer checks. aggregateDreamerEvalVariance is exported and takes any DreamerEvalRunReport, so a hand-built report that violates the coupling now buckets honestly too.
| const files = Array.isArray(entry.files) | ||
| ? [...new Set(entry.files.filter((file): file is string => typeof file === "string"))].sort() |
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When one repeat emits src/cache.ts and another emits an equivalent alias such as src/./cache.ts, production path normalization and scoreMapManifest treat both as the same tracked mapping, but this histogram compares the raw strings and reports disagreement. Apply the scorer's platform-aware path canonicalization before deduplicating and sorting so the variance artifact measures differing applied mappings rather than spelling differences.
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Fixed in 82ad822. You are right that this was inconsistent with the fix in the same function: scoreMapManifest and scoreVerifyManifest both compare canonicalObservedPaths(observed.files) against gold, so deduplication without canonicalization only closed half the gap.
canonicalObservedPaths is now exported from scorer.ts and reused by mapVerdict, so variance and the scorer share one path model rather than two — including the deliberate carve-outs in canonicalObservedPath, where an escaping prefix and a leading separator survive because production drops such a path instead of resolving it inward.
A test asserts ["src/cache.ts"] and ["src/./cache.ts"] land in one bucket with disagreement: false.
| if ( | ||
| input.expectedResultMode !== null && | ||
| input.actualResultMode !== input.expectedResultMode | ||
| ) { | ||
| return outcome("ERROR", "wrong-result-mode"); |
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When runVerify throws its final provider-output failure, taskResult remains null and therefore actualResultMode is null even though the seeded preflight already established the expected verify mode. This check then reports wrong-result-mode before inspecting the missing or rejected provider output, so credential, transport, abort, and typed provider failures in both verify lanes are misattributed. Only compare modes when the task returned a result, or classify the captured task failure first.
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Fixed in 82ad822. Confirmed the path: runVerify throwing leaves taskResult null, actualResultMode is then null, and for a verify lane expectedResultMode is always non-null, so every credential, transport, abort, and typed provider-output failure in both verify lanes was reported as wrong-result-mode — a gate partition mismatch, which is the wrong diagnosis and hides the real fault.
I took your first option: the comparison now also requires actualResultMode !== null, so a task that returned no result falls through to the manifest checks and is named ERROR: provider-failure. A genuine mismatch — a task that returned a result under the wrong mode — is still caught, and nothing can slip to PASS through the gap, since a verify run that threw is either caught by the missing manifest or downgraded by the taskError guard in runDreamerEvalTask.
Worth noting the mode contract is also enforced earlier and independently: preflightDreamerEvalTask compares the gate's mode against the scenario's expectedResultMode and throws gate-mismatch at seed time, before any model credits are spent.
A test covers it — verify-broad with a null result mode and no manifest now reports provider-failure, and it fails against the previous ordering.
| "fileIndependent": false, | ||
| "fixtureFiles": [ | ||
| { | ||
| "path": "docs/release.md", | ||
| "content": "Release artifacts are immutable and signed. Rollback keeps the prior artifact.\n" |
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Claims claim-history-4 through claim-history-8 are declared file-backed and later seeded into broad verification, but their only evidence is prose in docs/release.md or docs/deploy.md. The production mapper contract in map-memories-prompt.ts explicitly classifies Markdown that merely describes a fact, with no implementing or handling code, as file-independent; such claims would therefore be excluded from verification rather than reach this broad scope. Add implementing fixtures for these rules or mark them independent and remove them from the expected broad partition.
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Fixed in 82ad822 — same defect class as claim-rejected-redis in the core pool, and you are right that it applies here too. claim-history-4 through claim-history-8 were declared fileIndependent: false and mapped to docs/release.md or docs/deploy.md, which map-memories-prompt.ts explicitly calls not a backing file, so the broad partition asserted a mapping production would never have produced.
I took the "add implementing fixtures" option rather than marking them independent, since removing five of nine claims from the broad partition would gut the scenario the file exists to exercise. They now share two code modules, in the same shape claim-history-1 through claim-history-3 already use for src/history.ts:
// src/release.ts
export const ARTIFACTS_IMMUTABLE = true;
export const ARTIFACTS_SIGNED = true;
export const ROLLBACK_KEEPS_PRIOR_ARTIFACT = true;
// src/deploy.ts
export const MIGRATIONS_BEFORE_TRAFFIC_SHIFT = true;
export const BAKE_MINUTES = 15;The mapping preconditions and verify gold expectedFiles follow, and production preflight still returns the same broad partition for the scenario.
…he scorers Address the second review round: - Let a run-fatal score outrank the model mismatch. A fallback model that archived a gold-true claim was reported as ERROR:fallback-engaged with runFatal cleared, so dreamerEvalExitCode returned 1 for a destructive outcome the safety exit 2 exists to signal. - Compare verify result modes only when the task returned one. A verify lane whose task threw left actualResultMode null, and reporting that as wrong-result-mode buried credential, transport, abort, and typed provider-output failures behind a gate partition mismatch. - Canonicalize mapping paths in the variance encoding, reusing the scorer's canonicalObservedPaths. Equivalent spellings such as src/./cache.ts are one tracked mapping to scoreMapManifest and must not read as run-to-run disagreement. - Encode independence and the path set together for mapping verdicts. scoreMapManifest checks independence and then the file set, so a claim's bucket carries both rather than collapsing every independent result into one label. - Back claim-history-4 through claim-history-8 with implementing code. Their only evidence was prose in docs/release.md or docs/deploy.md, which the map prompt classifies as file-independent, so the broad partition asserted a mapping production would not have produced.
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| export interface RunDreamerEvalTaskOptions { | ||
| apiKey: string; | ||
| model: string; | ||
| artifactDir: string; |
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When a gold-matching manifest is captured but the apply path fails before writing either an application or rejection receipt, receipts is empty and this falls through to PASS. This is possible for an apply-time database exception because the dreamer task records a completed invocation before applying the manifest and catches ordinary apply failures; the evaluator can therefore report a successful experiment even though no mutation was committed. Require the expected applied/noop receipt for scored success, treating missing receipt evidence as a harness or apply error.
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Fixed in b257ba1. A scored PASS with no receipt is now ERROR: apply-not-applied.
The reasoning that makes this sound: runAutonomousManifestInCurrentTransaction refuses to run outside a transaction, and runClaimOperationInCurrentTransaction writes the receipt inside the same transaction that stages the items — recording noop when nothing changed. So a committed apply always leaves a receipt, and no receipt means nothing was applied. There is no legitimate zero-receipt PASS to break.
I traced reachability, since two guards looked like they might already cover it. applyClassifications runs after recordInvocation(..., { status: "completed" }), and on failure the outer catch calls recordDreamerManifestRejection inside its own try/catch that only logs — so an apply-time database fault can indeed leave no receipt of any kind. It then calls recordInvocation(..., { status: "failed" }) with the same startedAt as the completed row, and getSubagentInvocations orders by started_at DESC only. With the timestamps tied, rows[0] in the runner is not reliably the failed row, so the evaluator can read status: "completed", find no receipts, and score PASS. That tie is what makes your scenario live rather than caught by the invocation check.
Scoped to PASS deliberately. A FAIL that never applied is still a real finding about the model's output, and I did not want a missing receipt — which can itself be a harness fault — to downgrade a run-fatal wrong-archival out of the safety exit.
A test covers both directions: the baseline input now carries an applied receipt, and the same input with receipts: [] reports apply-not-applied.
| for (const entry of entries) { | ||
| const id = publicClaimId(entry); | ||
| if (id !== null) observed.set(id, verdict); |
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For verify repeats, the histogram records only verified, update, or archive, even though scoreVerifyManifest also judges each retained claim's file set and every update's replacement content. Thus one repeat can pass with the correct mapping/content while another fails with wrong-mapping or wrong-update-content, yet the affected claim is reported as unanimous. Encode the canonical file set and, for updates, the normalized content (or a digest) so the variance artifact exposes scorer-relevant differences.
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Fixed in b257ba1. Correct that the verdict word was not the scored unit: scoreVerifyManifest also checks a retained claim's canonical file set (wrong-mapping) and an update's replacement body (wrong-update-content), so two repeats could share verified while one passed and the other failed.
Verify buckets now encode verified;files:<canonical set>, update;files:<canonical set>;content:<digest>, and bare archive — archived entries carry neither, since the parser forces their file set empty and the scorer skips both checks for them.
On the digest choice: it covers the trimmed, lowercased body, which is the form the scorer's anchor matching sees, so whitespace and case differences do not register as variance. A genuinely different body does, and I think that is right rather than noisy — the body becomes the claim's stored content, so two repeats writing different text left the pool in different states. Both halves are tested.
| resolved.push(segment); | ||
| } | ||
| const joined = resolved.join("/"); | ||
| return /^[\\/]/.test(value) ? `/${joined}` : joined; |
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When a manifest emits a case variant such as SRC/CACHE.ts, production's normalizeVerificationFiles resolves it through gitTrackedPath's case-insensitive fallback and applies the canonical tracked path src/cache.ts, but this helper preserves the emitted casing. Both verify and map scoring therefore return FAIL:wrong-mapping for a manifest whose applied mapping matches gold, and the variance encoder can report the same spelling difference as disagreement. Normalize against the canonical fixture paths, or compare casing consistently with production.
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Fixed in b257ba1. I verified the production path end to end before changing the scorer, because the outcome looked like it might be platform-dependent — it is not:
gitTrackedPathtriesls-files --error-unmatch, and on failure lists every tracked file and takesmatches.find(m => m.toLowerCase() === repoRelativePath.toLowerCase()).normalizeVerificationFilespushes thattrackedspelling, not the emitted one.- On a case-sensitive filesystem
SRC/CACHE.tsdoes not exist, so it skips theexistsSyncbranch entirely and reaches the git lookup withsafeRealpathnull — which also skips thetracked !== repoRelativeguard below it.
So production applies src/cache.ts on Linux too, and both scorers were returning wrong-mapping for a manifest whose applied mapping matches gold.
canonicalObservedPaths now feeds canonicalTrackedPaths(values, tracked), which resolves casing against the union of the pool's mapped fixture paths — the universe production's ls-files lookup resolves against. Ambiguity follows production's rule: only a unique case-insensitive match is adopted; anything else keeps the observed spelling and compares unequal, which is the same outcome production reaches by dropping a path it cannot bind to one tracked file. Deliberately not a blanket case-fold, which would accept a genuinely different file on a case-sensitive host.
Both scorers and the variance encoder share the helper, so the three cannot drift. Tests cover a case variant of a tracked path passing verify and map, and a case variant matching no tracked path still failing wrong-mapping.
…ed paths Address the third review round: - Require a receipt for a scored PASS. A receipt and the mutations it covers are written in one transaction, so no receipt means nothing was applied; an apply-time database fault could leave a captured, gold-matching manifest scored PASS with the pool untouched, because the task records the invocation as completed before applying and its rejection-receipt write is best-effort. - Resolve an observed path's casing against the fixture's tracked paths. gitTrackedPath falls back to a case-insensitive match and normalizeVerificationFiles stores the tracked spelling, so production applies src/cache.ts for a manifest naming SRC/CACHE.ts while both scorers reported wrong-mapping. Only a unique case-insensitive match is adopted, which is how production resolves the ambiguity. - Encode verify payloads in the variance buckets. scoreVerifyManifest judges a retained claim's canonical file set and an update's replacement body, so two repeats could share a verdict while one passed and the other failed. Update bodies are recorded as a digest of the trimmed, lowercased form the anchor matching sees.
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In `@packages/e2e-tests/src/dreamer-eval/variance.ts`:
- Around line 124-125: Preserve replacement-content casing when computing
variance buckets: in variance.ts lines 124-125, hash trimmed entry.content
without lowercasing it; in variance.test.ts lines 216-223, update the case-only
body expectation to require disagreement.
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packages/e2e-tests/dreamer-eval/dev/dme-core-pool.jsonpackages/e2e-tests/dreamer-eval/dev/dme-verify-broad-history.jsonpackages/e2e-tests/scripts/run-dreamer-eval.tspackages/e2e-tests/src/dreamer-eval/contract.test.tspackages/e2e-tests/src/dreamer-eval/contract.tspackages/e2e-tests/src/dreamer-eval/dev-corpus.test.tspackages/e2e-tests/src/dreamer-eval/runner-classify.test.tspackages/e2e-tests/src/dreamer-eval/runner.tspackages/e2e-tests/src/dreamer-eval/scorer.test.tspackages/e2e-tests/src/dreamer-eval/scorer.tspackages/e2e-tests/src/dreamer-eval/seeder.tspackages/e2e-tests/src/dreamer-eval/variance.test.tspackages/e2e-tests/src/dreamer-eval/variance.tspackages/plugin/src/features/magic-context/dreamer/classify.tspackages/plugin/src/features/magic-context/dreamer/map-memories.tspackages/plugin/src/features/magic-context/dreamer/verify.tspackages/plugin/src/features/magic-context/memory/storage-claim-autonomous.ts
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The verify apply path stores entry.content.trim(), so case is part of the applied state. normalizeMemoryContent lowercases for content hashing and the scorer lowercases for anchor matching, but neither decides what the claim ends up holding, so lowercasing before the digest hid a case-only body change that leaves two repeats with different stored content.
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| if (trackedSet.has(value)) return value; | ||
| const folded = value.toLowerCase(); | ||
| const matches = [...trackedSet].filter((candidate) => candidate.toLowerCase() === folded); | ||
| return matches.length === 1 ? matches[0]! : value; |
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When a manifest contains the correct gold files plus an untracked extra, production's normalizeVerificationFiles drops the extra and applies the gold mapping, but this branch retains the unmatched spelling, causing both map and verify scorers to report wrong-mapping for the applied result. Fresh evidence also shows the earlier casing fix remains incomplete: trackedPoolPaths derives its universe from poolBefore.files, which is empty for the core map task because that task has no mapping preconditions, despite its fixture files being committed; case variants of those valid paths therefore still fail. Normalize against the committed fixture paths and omit paths production would drop.
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Fixed in 08447b7, both halves — and you are right that my previous fix was incomplete in exactly the way you describe.
The universe was wrong. trackedPoolPaths derived it from pool.claims[].files, which comes from projectionFiles — the baseline applicability assertion seeded from preconditions.mappings. The core map and classify tasks declare zero mappings, so every claim projected an empty file list and the casing fix resolved against nothing precisely where mapping is scored. Confirmed by parsing the corpus: task=map-memories mappings=0, while the committed fixture set is src/cache.ts, src/retry.ts, src/workers.ts, src/uploads.ts, src/delivery.ts, src/storage.ts, config/release.ts.
Both scorers now take the universe from the caller, and the live runner passes the scenario's committed fixture paths via the fixturePaths(scenario) helper it already had. Verified against the real corpus: SRC/CACHE.ts now resolves to src/cache.ts.
The drop rule is in too. normalizeVerificationFiles skips any path gitTrackedPath cannot bind to a tracked file, so appliedTrackedPaths now models the applied set: canonicalize, resolve casing against the universe, and omit what the host would refuse — including a path matching several tracked spellings, which is what gitTrackedPath returning null does. Tests cover a gold set plus an untracked extra passing, and a gold set plus a tracked extra still failing wrong-mapping, since that one really is applied.
Two consequences worth naming:
- The variance encoder derives its universe from
poolBefore[].filesand so hits the same empty set for map and classify reports. Dropping every path there would report agreement between repeats that mapped different files, so an empty universe falls back to canonicalization alone. Variance compares repeats against each other, not against gold, so that is sound; only the scorer needs the committed set. - The mutation harness needed a universe spanning the pool's mapped files and every gold path, because a synthetic fixture's gold file need not be a seeded mapping —
mutation/other.tsis exactly that case, and a pool-derived set broke its baseline.
| const repoCommitSha = | ||
| options.repoCommitSha ?? gitOutput(import.meta.dir, ["rev-parse", "HEAD"]) ?? ""; |
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When the checkout is dirty or contains a stale packages/plugin/dist/index.js, this records the clean HEAD SHA even though TestHarness loads the current source—or preferentially loads that existing bundle—from opencode-runner/spawn.ts. Two runs executing materially different plugin implementations can therefore share the same system tuple and be aggregated as repeats of one experiment, corrupting the evaluation results. Refuse a dirty/stale runtime or record and compare the digest and entrypoint of the plugin artifact actually loaded.
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Fixed in bef171d. Confirmed the mechanism in spawn.ts: pluginEntryPath() returns existsSync(PLUGIN_DIST_ENTRY) ? PLUGIN_DIST_ENTRY : PLUGIN_SRC_ENTRY, resolved per spawn, so the loaded bytes depend on working-tree state and on whether a bundle exists — while systemTuple recorded only git rev-parse HEAD.
I took the "record and compare" option rather than refusing a dirty runtime, because the tuple already exists to answer "are these runs comparable", and refusing would block local iteration without covering the legitimate case of a bundle built from HEAD.
DreamerSystemTuple now carries pluginEntry (dist | src) and pluginDigest:
- bundle loaded: the bundle's own digest, which is the artifact in full since every import is inlined.
- source loaded:
HEADplusgit status --porcelain -- packages/pluginplusgit diff HEAD -- packages/plugin, so every uncommitted deviation — modified and untracked alike — changes the digest.
The entry comes from spawn.ts's own resolver, now exported, rather than a second copy of that choice; a duplicated join would silently describe the wrong file the moment the spawner's preference changed. parseSystem validates both fields and systemIdentity compares them, so aggregateDreamerEvalVariance refuses a mixed set instead of aggregating it — tested for a differing digest and for a src-versus-dist mismatch. Provenance still resolves before the harness spends credits, so a run cannot pay for a report it would discard.
The README now says to build or remove the bundle before a run whose repeats must be comparable.
Correct the tracked-path universe and model the paths production drops: - Take the universe from the caller instead of the pool. A pool claim's files come from its seeded mapping, so a task with no mapping preconditions — map and classify — projects none, which left the mapping scorer resolving against an empty set and the previous casing fix a no-op exactly where mapping is scored. The live runner now passes the scenario's committed fixture paths. - Drop a path production would refuse. normalizeVerificationFiles skips anything gitTrackedPath cannot bind to a tracked file, so a manifest naming the gold files plus an untracked extra applies exactly gold, while both scorers reported wrong-mapping. A tracked extra is still applied and still fails. - Fall back to canonicalization alone in the variance encoder when a report carries no universe, since dropping every path there would report agreement between repeats that mapped different files. - Give the mutation harness one universe helper spanning the pool's mapped files and every gold path, because a synthetic fixture's gold file need not also be a seeded mapping.
repoCommitSha describes the checkout, not the runtime. The harness prefers packages/plugin/dist/index.js when it exists and falls back to packages/plugin/src/index.ts, so a dirty tree or a stale bundle makes two runs at one commit execute different plugin implementations while sharing a system tuple — and the variance aggregator would treat them as repeats of one experiment. The tuple now carries the resolved entrypoint and a digest of those bytes: the bundle's own digest when the bundle is loaded, and otherwise the commit plus git status and diff for packages/plugin, which covers every uncommitted deviation. The entry comes from the spawner's own resolver rather than a second copy of that choice, so the digest cannot describe a file the spawner would not load. Variance compares both fields, so a mixed set is refused instead of aggregated.
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| const status = gitOutput(PLUGIN_REPO_ROOT, ["status", "--porcelain", "--", "packages/plugin"]); | ||
| const diff = gitOutput(PLUGIN_REPO_ROOT, ["diff", "HEAD", "--", "packages/plugin"]); |
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When evaluations run from a dirty checkout, this digest covers only packages/plugin, so changes to the runner, scorer, parsers, or scenario corpus can alter results while preserving the same system tuple; additionally, git diff HEAD omits the contents of untracked plugin files, so changing an imported untracked module without renaming it also preserves this digest. Repeats produced by materially different evaluator or plugin bytes can therefore be aggregated as one experiment; hash the complete runtime/evaluator inputs, including untracked file contents.
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Fixed in d699cfd. Both holes were real, and I verified the untracked one rather than reasoning about it: writing an untracked file under packages/plugin/src and then changing only its contents left the old digest unmoved, because git status --porcelain names the file while git diff HEAD excludes untracked content entirely. After the change the same experiment moves the digest.
The digest is now runtimeDigest and covers:
- the loaded bundle's bytes when a bundle is loaded (it is git-ignored, so the tree says nothing about it),
HEAD, and- every working-tree deviation across the whole repository — status code, path, and a hash of the file's content — from
git status --porcelain=v1 -z --untracked-files=all.
Repository scope rather than packages/plugin for exactly the reason you give: the runner, scorers, contract, seeder, and scenario corpus decide a result as much as the plugin does. Ignored paths stay out, which keeps artifacts/ from entering the digest, and -z avoids porcelain's quoting of paths with whitespace.
So two runs are aggregated as one experiment only when the commit, the bundle, and every deviation from that commit match. A run from a dirty tree is comparable against runs from the same tree, which is the honest promise.
| function observedVerdicts(report: DreamerEvalRunReport): Map<string, string> { | ||
| const observed = new Map<string, string>(); | ||
| if (report.parsedManifest === null) return observed; | ||
| const tracked = [...new Set(report.poolBefore.flatMap((claim) => claim.files))]; |
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Fresh evidence after the committed-fixture scorer fix is that map runs still derive their variance path universe solely from poolBefore, whose mappings are empty for the core map task. Consequently equivalent outputs such as src/cache.ts and SRC/CACHE.ts are scored as the same applied mapping using the scenario's committed fixture paths but are placed in different variance buckets here. Carry the committed fixture universe into reports or otherwise use it during map aggregation so the artifact does not report false disagreement.
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Fixed in d699cfd. You are right, and my documented fallback traded one false report for another: collapsing every path was avoided, but src/cache.ts and SRC/CACHE.ts — one applied mapping to the scorer — still landed in different buckets.
I took your first option. DreamerEvalRunReport now carries trackedFiles, read with git ls-files in the fixture worktree after seeding, and the variance encoder resolves against that. The fallback is gone, so there is no longer a task where the encoder and the scorer disagree about what a path means.
Recording it also removes the derivation that caused this: a claim's projected files come from its seeded mapping, so any consumer computing the universe from poolBefore gets an empty set for map and classify. A test pins it — two map repeats spelling the same tracked path differently now share one bucket, with the capture's projected files deliberately empty.
| if (scored.status === "PASS" && input.receipts.length === 0) { | ||
| return outcome("ERROR", "apply-not-applied", scored.parsedManifest); |
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When a valid verify manifest wrongly archives a gold-true claim but the apply transaction fails and the best-effort rejection receipt also cannot be written, receipts is empty, which proves the archival did not commit, yet this PASS-only check lets FAIL:wrong-archival retain runFatal: true and produce safety exit 2. Apply the missing-receipt classification to scored fatal failures as well so an unapplied proposal is reported as apply-not-applied rather than as a destructive mutation.
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Fixed in d699cfd. You are right and my earlier scoping was wrong. I justified PASS-only by safety bias, but the atomicity cuts the other way: no applied receipt proves nothing committed, so reporting wrong-archival with runFatal — and the safety exit 2 — claims destroyed data for a proposal the pool refused. A false exit 2 is its own harm; it teaches people to discount the signal that exists for the one irreversible outcome.
The gate is now expressed as: an applied or noop receipt is the only proof the pool took the manifest, and the two claims that depend on that are a PASS (a successful applied experiment) and a run-fatal reason (an irreversible mutation). Either without an applied receipt becomes ERROR: apply-not-applied. Ordinary failures assert neither, so they keep the scorer's reason.
That also closes the case your other comment implies: when production refuses the payload it records a stale receipt, so a fatal reason beside a refusal is downgraded too rather than escaping through the rejection branch. Tested for a gold-true archival with no receipts.
| return scored.status === "FAIL" && scored.reason === "invalid-output" | ||
| ? outcome("FAIL", "invalid-output", scored.parsedManifest) | ||
| : outcome("ERROR", "harness-failure", scored.parsedManifest); | ||
| } |
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When a structurally valid map or verify manifest contains only untracked paths, the production apply layer rejects it and records the matching rejection receipt, while the scorer correctly classifies the model output as FAIL:wrong-mapping. This branch preserves a matching rejection only for invalid-output, so the same model error is instead reported as ERROR:harness-failure; overlong or empty verify updates are similarly converted from wrong-update-content. Preserve the scorer's applicable failure reason when the rejection records a deterministic provider-payload defect rather than treating every post-validation rejection as a harness fault.
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Fixed in d699cfd. Verified the production side first: map-memories.ts throws and records the rejection when normalizeVerificationFiles leaves normalized.files.length === 0, and verify.ts does the same for a blank or over-long update body. So both are deterministic payload defects that the scorer independently calls wrong-mapping and wrong-update-content — and reporting them as harness-failure blamed the harness for a model error.
The branch now keys on the discriminator rather than on one reason: if the rejection receipt's digest matches this manifest, production refused these exact bytes, the scorer judged the same bytes, and its FAIL reason is the honest report — whichever reason it is. A PASS beside a refusal is the two contracts disagreeing about the same bytes, so that stays harness-failure.
Two details worth naming. A wrong-mapping from naming a tracked but wrong file produces no rejection at all — production applies it — so it never reaches this branch and is reported directly. And a fatal reason beside a refusal is downgraded by the applied-receipt rule above, since a refusal is a stale receipt, not an apply. A test covers the all-untracked mapping case.
| function fixturePaths(scenario: DreamerEvalScenario): string[] { | ||
| return [...new Set(scenario.pool.claims.flatMap((claim) => claim.fixtureFiles.map((file) => file.path)))]; |
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Fresh evidence after the committed-path scoring fix is that the seeder also commits .dreamer-eval-fixture, but this universe contains only claim-declared files. If a map or verify manifest emits the correct gold file plus that marker, production recognizes both as tracked and stores the extra mapping, while appliedTrackedPaths drops the marker and the scorer can report PASS. Include every committed worktree path—or explicitly prevent production from accepting the marker—so applied extra mappings cannot be hidden.
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Fixed in d699cfd. Confirmed the marker is tracked: the seeder writes .dreamer-eval-fixture and then git add --forces it alongside the claim files, and it already has a guard refusing a scenario that declares that path as fixture content — so the path was known to be special while the scoring universe silently omitted it.
Rather than special-case the marker I took the "every committed worktree path" option, which is also production's own rule: the universe is now git ls-files in the seeded fixture worktree, recorded on the report. The marker is in it, so a manifest naming gold plus the marker now has the marker resolved as tracked and stored — and the applied set differs from gold, which is wrong-mapping, exactly as production's stored mapping would show.
This replaces the scenario's declared fixture list as the source, so the universe can no longer drift from what the fixture repository actually contains.
…used Address the fifth review round: - Widen the runtime digest to every input the commit does not pin. It covered only packages/plugin, so a changed runner, scorer, contract, seeder, or corpus altered results at one tuple; and it hashed git-diff output, which omits untracked files entirely, so editing an untracked module an import already resolves left the digest still. It now covers the loaded bundle plus every working-tree deviation from HEAD with its content, and is named runtimeDigest for what it spans. - Read the fixture's tracked files with git ls-files and record them on the report. The seeder also commits its .dreamer-eval-fixture marker, so production would accept and store a mapping naming it while a declared-file universe dropped it and hid the extra mapping. - Resolve variance mapping paths against that recorded set. A map task has no mapping preconditions, so its capture projects no files and the previous fallback put src/cache.ts and SRC/CACHE.ts — one applied mapping to the scorer — in different buckets. - Require an applied receipt for a run-fatal reason too, not only a PASS. An applied or noop receipt is the only proof the pool took the manifest, so reporting wrong-archival and the safety exit 2 for a proposal that never committed is a false alarm about destroyed data. - Keep the scorer's failure reason when production refused the same bytes. The apply layer rejects an all-untracked mapping and a blank or over-long update body and records the rejection, so wrong-mapping and wrong-update-content were being reported as harness faults instead of the model errors they are.
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| // `-z` because a path may contain whitespace, and porcelain quotes such paths | ||
| // otherwise. Ignored files stay out, which is what keeps artifact directories | ||
| // from entering the digest. | ||
| const status = gitOutput(PLUGIN_REPO_ROOT, ["status", "--porcelain=v1", "-z", "--untracked-files=all"]); |
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When --output-dir points inside the repository but outside the ignored default artifact directory, each completed repeat creates an untracked report that this repository-wide status scan includes in the next repeat's runtimeDigest. The loop in run-dreamer-eval.ts therefore produces a different system tuple for every repeat and only discovers it after all model calls, when variance aggregation rejects the reports. Exclude the active output tree from provenance or require outputs to be ignored/outside the repository.
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Fixed in a85c388 — self-inflicted by widening the digest to the repository, and you traced the consequence exactly: the failure would surface only after every model call, which is the worst possible moment.
runtimeProvenance now takes the run's artifact directory and skips deviations at or under it. Outputs are not inputs, so nothing is lost. Verified by writing a report into a non-ignored output dir between two digest computations: the digest is unchanged.
For the record, the default output dir is already covered by .gitignore:23 (packages/e2e-tests/artifacts/), so this was reachable only through a custom --output-dir inside the repository — which is exactly the case worth being robust to, since it produces no error until aggregation.
I preferred excluding to requiring ignored-or-outside outputs: the stricter rule would reject a legitimate --output-dir for a reason that has nothing to do with what the run executed.
| return { | ||
| repoCommitSha, | ||
| bunVersion: Bun.version, | ||
| opencodeVersion: options.opencodeVersion ?? "unknown", | ||
| modelId: options.model, | ||
| parserImpl: "ts" as const, | ||
| ...runtimeProvenance(), |
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When reports from Windows and POSIX are combined, this tuple can identify them as the same system even though both production path normalization and canonicalObservedPath deliberately have platform-dependent separator semantics. For example, an emitted src\cache.ts can resolve to tracked src/cache.ts and pass on Windows while being dropped and scored wrong-mapping on Linux, so variance can mix harness behavior with model variance. Add at least process.platform to the recorded and compared system identity.
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Fixed in a85c388. platform (process.platform) is now recorded and compared.
Agreed on the reasoning, and it is broader than Windows: canonicalObservedPath is separator-aware by design — the comment there says it mirrors production, where a backslash resolves on Windows and is an ordinary filename character on POSIX — and a case-insensitive filesystem changes which paths normalizeVerificationFiles resolves at all, so macOS and Linux can also disagree about the same manifest. Mixing those reports would fold harness behaviour into what the artifact presents as model variance.
A test asserts a win32 report is not the same system as a linux one.
| if (reports.some((report) => report.scenarioId !== first.scenarioId || report.task !== first.task)) { | ||
| throw new Error("variance reports must share one scenario and task"); | ||
| } | ||
|
|
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When the same report is supplied twice, or callers reuse RunDreamerEvalTaskOptions.runId, aggregation counts both entries as independent repeats without checking run identity. The resulting repeatCount and every histogram count are inflated, making one model invocation appear to be multiple agreeing runs and overstating stability. Require unique runId values before building the artifact.
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Fixed in a85c388. aggregateDreamerEvalVariance now refuses a set whose run ids repeat, alongside the existing refusals for a mixed system tuple and a mixed scenario or task.
The failure mode is worth naming precisely: every count is inflated, so one invocation reads as several agreeing runs — the artifact would report its highest possible stability from a single sample. aggregateDreamerEvalVarianceFiles takes a path list, so a repeated path is enough to trigger it, and RunDreamerEvalTaskOptions.runId is caller-supplied. A test covers the same report passed twice.
…istinct Address the sixth review round: - Exclude the run's output tree from the runtime digest. Outputs are not inputs, and an --output-dir inside the repository but outside the ignored default made each completed repeat an untracked deviation the next repeat hashed, so every repeat got a different tuple and variance refused the set only after every model call. - Record process.platform in the tuple. Path handling is deliberately separator-aware and a case-insensitive filesystem changes which paths resolve, so the same manifest can score differently per platform and reports from two platforms would otherwise read as one system. - Refuse repeated run ids before aggregating. One run counted twice inflates repeatCount and every bucket, so a single invocation would read as several agreeing runs and overstate stability.
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| .filter((entry) => entry.length > 3) | ||
| .filter((entry) => { | ||
| const absolute = resolve(PLUGIN_REPO_ROOT, entry.slice(3)); | ||
| return absolute !== outputRoot && !absolute.startsWith(`${outputRoot}${sep}`); |
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Fresh evidence after the output-tree fix is that the exported runDreamerEvalTask accepts an arbitrary artifactDir, and this filter trusts that entire directory tree as output. If an API caller points artifactDir at the repository root or an evaluator/plugin source ancestor, dirty runtime files under it are omitted from runtimeDigest; materially different implementations can then share a system tuple and be aggregated as repeats. Reject artifact directories that contain runtime inputs, or exclude only the artifact files the runner actually writes.
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Fixed in 531462b. Fair — I traded one hole for another by trusting a caller-supplied tree.
runtimeProvenance now refuses an artifactDir that contains tracked files, before the harness starts. A directory holding tracked files is not an output directory, and that is exactly the property the exclusion needs: it cannot hide a tracked source file. Measured against the realistic misuses — repository root has 2020 tracked files and packages/plugin has 955, both refused; the default packages/e2e-tests/artifacts/dreamer-eval has 0 and is accepted.
I preferred this to excluding only the files the runner writes, because the runner is not the only writer into that tree: run-dreamer-eval.ts also writes variance.json per group, and a per-file exclusion list would have to track both and stay in sync with them.
| function systemTuple(options: RunDreamerEvalTaskOptions) { | ||
| const repoCommitSha = | ||
| options.repoCommitSha ?? gitOutput(import.meta.dir, ["rev-parse", "HEAD"]) ?? ""; | ||
| if (!/^[0-9a-f]{40,64}$/.test(repoCommitSha)) { |
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When an API caller supplies a 41–63 character repoCommitSha, this range regex accepts it and the live model run proceeds, but parseRunReport later accepts only full 40- or 64-character Git object IDs. The runner therefore writes an artifact that its own variance step rejects after model credits have already been spent; use the same exact 40-or-64 predicate at this preflight.
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Fixed in 531462b. contract.ts now exports isValidRepoCommitSha, backed by the same SHA_RE parseRunReport uses, and the preflight calls it — so the two cannot drift again.
Verified the gap it closes: a 41-character value was accepted by the old {40,64} range and rejected by the report contract, so the run would have been paid for and then lost at aggregation. git rev-parse only ever returns 40 or 64, so this was reachable only through the repoCommitSha override — which is precisely the path with no other guard.
| options: RunDreamerEvalTaskOptions, | ||
| ): Promise<DreamerEvalRunReport> { | ||
| const nowMs = options.nowMs ?? Date.now(); | ||
| const runId = options.runId ?? `run-${randomUUID().replaceAll("-", "")}`; |
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When a caller supplies RunDreamerEvalTaskOptions.runId, it is accepted without the report contract's run-... validation and later interpolated into the artifact filename. An input such as ../../result escapes artifactDir and can overwrite an unrelated JSON file, while any merely malformed ID also produces a report that parseRunReport rejects during aggregation after the live run. Validate the override before creating the harness and before using it in join.
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Fixed in 531462b. contract.ts exports isValidRunId over the same RUN_ID_RE the report contract uses, and the runner rejects a bad override before creating the harness — so before any credits are spent and before the value reaches join.
Confirmed both consequences: isValidRunId("../../result") is false, and a generated run-<hex> id passes. The traversal is the sharper half — the id is interpolated into ${runId}.json under artifactDir, so it could have overwritten an unrelated file outside the output tree.
| const listed = gitOutput(workdir, ["ls-files"]); | ||
| if (listed === null) throw new Error("dreamer-eval could not list the fixture's tracked files"); | ||
| return listed.split("\n").filter((path) => path.length > 0); |
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When a valid scenario uses a non-ASCII, backslash-containing, or embedded-newline fixture path, plain git ls-files may quote or escape that pathname, and splitting on newlines records the displayed spelling rather than the tracked path production resolves. The scorer can then reject an applied gold mapping, and quoted output can even violate parseRunReport's path rules. git ls-files -h documents -z as “separate paths with the NUL character”; request that form and split on NUL.
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Fixed in 531462b — git ls-files -z, split on NUL.
Agreed, and it was inconsistent of me: the working-tree scan in the same commit already used -z for exactly this reason, while the fixture listing I added did not. A quoted or escaped pathname would have recorded the displayed spelling rather than the tracked path production resolves, so the scorer could reject an applied gold mapping — and the quoted form can itself violate the report's path-unrepresentable rule, which would then reject the artifact after the run.
| export function classifyDreamerRun(input: DreamerRunClassificationInput): DreamerRunClassification { | ||
| if (!input.fixtureUnchanged) return outcome("ERROR", "fixture-drift"); | ||
| if (input.childCount !== input.expectedChildCount) return outcome("ERROR", "harness-failure"); | ||
| if (input.leaseLost) return outcome("ERROR", "lease-lost"); |
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When a verify manifest wrongly archives a gold-true claim and commits successfully, the task heartbeat stops before captureChildren and the remaining evidence collection. If those SDK or Git reads take longer than the lease's two-minute expiry, leaseLost becomes true and this early return replaces the applied FAIL:wrong-archival with ERROR:lease-lost, downgrading the required safety exit from 2 to 1 despite the applied receipt. Score and inspect applied receipts before allowing this post-run lease check to mask an irreversible mutation.
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Fixed in 531462b. This is the mirror of the receipt gate and you are right about the direction: there, a fatal score with no applied receipt was overstating; here, a fatal score with one was being erased.
The lease check now yields when this run committed an irreversible mutation — an applied receipt under the run's own producer plus a run-fatal score — so FAIL: wrong-archival and exit 2 survive an expiry that happened while evidence was being collected.
I scoped it to lease-lost deliberately rather than making a fatal score outrank every ERROR gate. fixture-drift and a child-count mismatch undermine the captured manifest the score is computed from, so a fatal claim behind them could itself be a false alarm; a lease expiring after the write does not touch the evidence. Tested all four paths: fatal plus applied receipt plus leaseLost reports the archival, no receipt reports lease-lost, and fixture drift or a child mismatch still win.
…l visible Address the seventh review round: - Let an applied, run-fatal score outrank the post-run lease check. The lease can expire while evidence is collected, and an applied receipt under this run's producer proves its write committed, so reporting lease-lost dropped the safety exit 2 for data that really was destroyed. Scoped to that check: fixture drift and a child-count mismatch undermine the evidence the score rests on, so they still win. - Refuse an artifact directory containing tracked files. Excluding the output tree from the runtime digest is sound only if it holds no runtime inputs; an artifactDir at the repository root or a source ancestor would otherwise hide every dirty file under it. - Use the report contract's own predicates at preflight for a caller-supplied repoCommitSha and runId, so an override that parseRunReport would refuse cannot spend a live run first. The run id is also interpolated into the artifact filename, where a traversal would escape artifactDir. - Read the fixture's tracked files with -z. Plain ls-files quotes a path with non-ASCII bytes, a backslash, or a newline, which would record the displayed spelling instead of the path production resolves.
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| // would otherwise hide every dirty file under it, letting two different | ||
| // implementations share one tuple. A directory containing tracked files is not | ||
| // an output directory. | ||
| const trackedUnderOutput = gitOutput(PLUGIN_REPO_ROOT, ["ls-files", "-z", "--", outputRoot]); |
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When --output-dir resolves outside the checkout (for example /tmp/dreamer-eval), this passes that absolute path to git ls-files with cwd set to the repository. Although such a directory cannot contain tracked repository inputs, Git rejects the pathspec with fatal: ... is outside repository, so gitOutput returns null and every run aborts during provenance preflight. I confirmed git ls-files -h treats trailing arguments as file pathspecs and the command fails for /tmp; handle outside-repository output roots as having no tracked files, or only construct a repository-relative pathspec when the directory is inside the worktree.
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Fixed in 13aac37 — my guard from the previous round broke a legitimate --output-dir, and your reproduction is exact. Verified locally:
$ git ls-files -z -- /tmp/dreamer-eval
fatal: /tmp/dreamer-eval: '/tmp/dreamer-eval' is outside repository at '/local/home/ahrav/scratch/magic-context'
gitOutput returns null for that, which my code turned into a hard abort during provenance preflight — so every run with an external output directory failed before doing anything.
Git is now only consulted when the output root is inside the worktree, decided by path arithmetic against the repository root. An external directory cannot contain tracked repository inputs, so it needs no check and the exclusion filter is a no-op for it: git status paths are repo-relative and never resolve under an outside root.
| @@ -129,14 +129,57 @@ function canonicalObservedPath(value: string): string { | |||
| return /^[\\/]/.test(value) ? `/${joined}` : joined; | |||
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When a map or verify manifest emits an absolute path that is still inside the seeded fixture repository, such as /tmp/<workdir>/src/cache.ts, production accepts it: normalizeVerificationFiles resolves the candidate, converts it back to a repo-relative path with path.relative, and stores the tracked spelling. This helper instead preserves the leading slash, so appliedTrackedPaths cannot match it against src/cache.ts; the scorer reports wrong-mapping, and variance can report disagreement, even though production applied exactly the gold mapping. Convert absolute paths beneath the fixture root to repo-relative paths as production does, which may require passing the fixture root into the scorer.
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Fixed in 13aac37. You are right that my comment conflated two cases: production skips a path that resolves outside the project, but an absolute path inside it is resolved inward — path.resolve then path.relative(gitRoot, ...) — and stored as the tracked relative spelling.
The tracked universe is now the fixture worktree rather than a bare path list: { root, files }. appliedTrackedPaths brings an absolute path under that root back to repo-relative before matching, and leaves one that resolves outside as observed so it still cannot bind. The report records fixtureRoot, so variance resolves each repeat against its own root — which is what makes an absolute path in one repeat comparable to a relative path in another, since the temp root differs per run. Tests cover both directions in the scorer and the cross-repeat case in variance.
Worth naming the pattern, since this is the fifth path rule this file has grown: the scorer mirrors normalizeVerificationFiles rather than calling it, and every mirror gap has surfaced as a false wrong-mapping. Calling production directly would end the class, but it is async and needs a real git repository, while the scorers are sync and the mutation harness scores synthetic fixtures with no repository at all — so the mirror is deliberate and its cost is exactly these findings. If they keep coming, the honest fix is to make the scorers async and give the mutation harness a temporary repository, and I would rather do that as its own change than keep adding rules.
| reports.push(report); | ||
| console.log(`${report.runId}: ${report.status}${report.reason === null ? "" : `:${report.reason}`}`); | ||
| } | ||
| const variance = aggregateDreamerEvalVarianceFiles(groupReportPaths); |
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When an earlier repeat has already produced runFatal: true and this variance call then rejects the group—for example because the runtime tuple changed between repeats—the exception escapes main, and the outer .catch unconditionally exits with 1 before dreamerEvalExitCode(reports) can return the required safety code 2. Thus a successfully applied wrong archival can be downgraded merely because aggregation encountered a later artifact/system error. Handle aggregation failures without bypassing the accumulated fatal state, or compute the final exit code in a path that also runs on post-report exceptions.
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Fixed in 13aac37. Confirmed the path: main returns dreamerEvalExitCode(reports), so a throw from the variance call skips it entirely and the outer .catch exits 1 — losing exit 2 for an archival that had already been applied and reported.
Aggregation failures are now caught per group, logged with the scenario and task, and folded into the exit code: a run-fatal set keeps 2, and anything else fails with 1. So an artifact or system-tuple error still fails the run, but it can no longer downgrade the one signal that says data was destroyed.
The other throws in main — missing credentials, bad filters, a malformed scenario — happen before any run and still exit 1, which is what the README documents.
Address the eighth review round: - Keep exit 2 when variance aggregation fails. The outer catch exits 1 unconditionally, so an aggregation error surfacing after an applied wrong archival downgraded the safety exit. Aggregation failures are now reported per group and folded into the exit code instead of escaping. - Resolve an absolute path inside the fixture the way production does. normalizeVerificationFiles resolves the candidate against the session directory and converts it back with path.relative, so it accepts such a path and stores the tracked spelling, while the scorer kept the leading slash and reported wrong-mapping for an applied gold mapping. The tracked universe is now the fixture worktree — root plus tracked paths — and the report records the root, so variance resolves each repeat against its own and an absolute path in one matches a relative path in another. A path resolving outside the fixture still does not bind, because production skips it rather than resolving it inward. - Only ask git about an artifact directory inside the worktree. git ls-files refuses a pathspec outside the repository, so the new tracked-file guard aborted every run with --output-dir pointed anywhere external; an outside root cannot hold tracked files and is now answered by path arithmetic.
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| } catch (error) { | ||
| if (error instanceof DreamerEvalSeederError) { | ||
| classification = outcome("ERROR", error.reason); | ||
| } else { | ||
| classification = outcome("ERROR", "harness-failure"); |
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A separate post-run masking path remains: if the task successfully applies a verify manifest that wrongly archives a gold-true claim, but a subsequent SDK or database read such as captureChildren throws, this blanket catch replaces the still-initial classification with ERROR:harness-failure before receipts or poolAfter are inspected. The irreversible archival then produces exit 1 instead of the required safety exit 2; collect local receipt/state evidence before fallible transcript reads, or recover applied fatal mutations in this catch path.
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Partly fixed in db39d92, and I want to be straight about the part that is not.
Fixed: the outer catch no longer overwrites a classification that already recorded an irreversible mutation, so a throw after the manifest was scored keeps FAIL: wrong-archival and the safety exit 2.
Not fixed, deliberately: the window you named — captureChildren throwing — happens before any manifest exists, and I could not close it without a report-contract change. parseRunReport refuses a FAIL whose rawManifest is blank (fail-requires-evidence), and runFatal is derived from status and reason via isRunFatal, whose run-fatal set contains only the FAIL reason wrong-archival. So with the transcript lost there is no contract-valid way to file "the harness failed and an archival committed": every available reason is an ERROR, and no ERROR can be run-fatal.
Your first suggestion — collect local receipt and pool state before the fallible transcript reads — is the right shape, and it would also give a better detector than the manifest: a gold-non-archive claim showing lifecycleState: "archived" in poolAfter is direct evidence of the harm, independent of what the model said. But expressing it still needs a run-fatal ERROR reason, which touches RUN_FATAL_FAIL_REASONS, isRunFatal, the runFatal mapping invariant that parseRunReport enforces, and dreamerEvalExitCode.
I would rather propose that than slip it in behind a review comment, since an earlier round specifically hardened the invariant it would relax. Happy to do it as its own change if you agree that is the shape.
| trackedFiles, | ||
| fixtureRoot, |
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When harness setup or seedDreamerEvalTask fails, fixtureRoot retains its initial empty string and the runner still writes this report. parseRunReport later validates the field with parseFilePath, whose string primitive rejects empty values, so expected ERROR:fixture-drift, ERROR:gate-mismatch, and early harness-failure artifacts cannot be read by variance aggregation even though ERROR reports explicitly permit partial captures. Represent unavailable fixture metadata with a contract-valid nullable form or avoid emitting an invalid report.
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Fixed in db39d92 — a bug I introduced one commit earlier. fixtureRoot is now string | null, null meaning the run failed before a fixture existed, and parseRunReport accepts that while still validating a present value with parseFilePath.
Verified the exact case: an ERROR: fixture-drift report with fixtureRoot: null now parses, where the empty string was rejected by the string primitive. That is the same partial capture ERROR reports are already allowed to hold — poolBefore, poolAfter, and parsedManifest all have that exemption — so null is consistent with the rest of the contract rather than a new concession.
Variance treats a null root as an empty one, which simply leaves an absolute path unchanged; a report with no fixture carries no mapping evidence to resolve anyway.
| const matches = [...trackedSet].filter((entry) => entry.toLowerCase() === folded); | ||
| if (matches.length === 1) applied.push(matches[0]!); |
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On a case-sensitive fixture containing two tracked paths that differ only by case, an emitted third casing matches both entries here and is dropped because matches.length !== 1. Production's gitTrackedPath instead uses matches.find(...) and applies the first case-insensitive match, so a valid Linux scenario can mutate the mapping while the scorer reports wrong-mapping (or can fail gold that expects the applied spelling). Resolve the same first tracked match as production, or reject case-colliding fixture paths in the scenario contract.
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Fixed in db39d92. gitTrackedPath ends with matches.find(m => m.toLowerCase() === lower), so it takes the first case-insensitive match rather than requiring uniqueness — my uniqueness rule was stricter than production and dropped a path the host would have applied.
appliedTrackedPaths now uses find over the tracked list, and that list comes from the same git ls-files -z output, so the ordering it picks from is the ordering production picks from. A test covers a fixture tracking both src/cache.ts and SRC/cache.ts with a manifest emitting a third casing.
I chose mirroring over your alternative of rejecting case-colliding fixture paths in the scenario contract because this helper's whole purpose is to reproduce what the host stores; a contract ban would also refuse a scenario that is perfectly runnable on a case-sensitive host.
| function repoRelative(value: string, root: string): string { | ||
| if (!isAbsolute(value)) return value; | ||
| const relative = relativePath(root, value); | ||
| return relative.length > 0 && !relative.startsWith("..") ? relative : value; |
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When a tracked in-fixture file has a valid name such as ..config and the manifest emits its absolute path, path.relative(root, value) returns ..config; this prefix test mistakes it for an escape and leaves the path absolute, so scoring drops it. Production only rejects relative paths beginning ../, and therefore applies this same file, making a production-correct map or verify result score as wrong-mapping. Test containment by path segments (or the platform separator), not by the bare ".." prefix.
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Fixed in db39d92 — also mine, from the same commit. The test is now relative === ".." || relative.startsWith("../") on a separator-normalized value, which is what normalizeVerificationFiles checks.
You are right that ..config is a legitimate tracked name: path.relative returns it unchanged for a file directly under the root, and the bare two-dot prefix check read that as an escape, dropped the path, and scored an applied gold mapping as wrong-mapping. A test now covers a fixture tracking ..config and a manifest emitting its absolute path, scoring PASS.
| task: DreamerTaskScenario, | ||
| options: RunDreamerEvalTaskOptions, | ||
| ): Promise<DreamerEvalRunReport> { | ||
| const nowMs = options.nowMs ?? Date.now(); |
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When an API caller supplies a positive fractional nowMs, such as Date.now() + 0.5, seeding can complete and the model run proceeds, but the report preserves that fractional value while parseRunReport accepts only safe integers. The paid run therefore writes an artifact that variance aggregation rejects; validate nowMs against the report contract before creating the harness, just as the run ID and commit SHA overrides are validated.
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Fixed in db39d92. contract.ts now exports isValidNowMs, mirroring the integer primitive parseRunReport applies (safe integer, non-negative), and the runner checks it beside the run id and commit sha before creating the harness.
Confirmed the gap: isValidNowMs(Date.now() + 0.5) is false, so that override would previously have seeded, run, written the artifact, and only failed at aggregation with the model spend already committed. Same class as the other two overrides, and now handled the same way.
…n exactly Address the ninth review round: - Allow a null fixtureRoot. A run that failed before the fixture existed wrote an empty string, which parseFilePath rejects, so the expected fixture-drift, gate-mismatch, and early harness-failure artifacts could not be read back — the same partial capture an ERROR report already permits. - Mirror production's escape test. path.relative returns ..config for a legitimately named tracked file, and a bare ".." prefix check read that as an escape and dropped the path; production refuses only "../". - Mirror production's case-collision selection. gitTrackedPath takes the first case-insensitive match from ls-files order rather than skipping an ambiguous path, so a fixture holding two spellings that differ only by case now resolves the same way the host would. - Validate an overridden nowMs at preflight, like the run id and commit sha, so a fractional value cannot be paid for and then rejected by parseRunReport at aggregation. - Do not let the outer catch overwrite a run-fatal classification. An archival that committed is not unmade by a later evidence-collection failure, so it keeps the safety exit. A throw before the manifest is scored still cannot express one: the contract refuses a FAIL without raw bytes and derives runFatal from status and reason, so that window needs a run-fatal ERROR reason rather than a local change.
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| const groupReportPaths: string[] = []; | ||
| for (let repeat = 1; repeat <= args.repeat; repeat += 1) { | ||
| console.log(`${scenario.id}/${task.task}: run ${repeat}/${args.repeat}`); | ||
| const report = await runDreamerEvalTask(scenario, task, { |
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Fresh evidence after the variance-aggregation fix is that only aggregation is guarded; this await remains outside the catch. If an earlier repeat has already returned runFatal: true and a later runDreamerEvalTask throws before returning—for example, because its report cannot be written or runtime provenance fails—the exception escapes main, and the outer catch exits 1 without consulting dreamerEvalExitCode(reports), again downgrading an applied wrong archival from safety exit 2. Catch per-run failures or otherwise carry the accumulated fatal state through this path.
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Fixed in 29cda40. You are right that I guarded only half of it — the aggregation call — and left the await that produces the reports outside.
The per-run call is now wrapped: a throw is logged with scenario, task, and repeat, sets a failure flag, and stops the loop; the exit code is then computed from the reports already collected, so a run-fatal set keeps 2 and anything else fails with 1.
I chose to stop rather than continue to the next repeat or group. A task classifies its own failures into an ERROR report, so a throw here is structural — provenance resolution or the artifact write — and those repeat, meaning every further repeat would spend model credits to fail the same way.
| const folded = candidate.toLowerCase(); | ||
| const match = [...trackedSet].find((entry) => entry.toLowerCase() === folded); | ||
| if (match !== undefined) applied.push(match); |
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When a manifest emits a pathspec that uniquely matches a tracked fixture path, such as src/retr?.ts with only src/retry.ts tracked, production's git ls-files --error-unmatch -- <path> returns and applies src/retry.ts, while this equality-only fallback drops the value and reports wrong-mapping; variance uses the same helper and can also report false disagreement. I confirmed this with the installed CLI, whose git ls-files -h usage accepts [<file>...] and documents --error-unmatch as checking whether each <file> is in the index. Reproduce Git's pathspec selection here or prevent production from accepting pathspec metacharacters.
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Declining this one, with reasoning rather than a disagreement about the facts — your reproduction is right: git ls-files --error-unmatch -- src/retr?.ts matches src/retry.ts, so production would apply it while the scorer drops it.
Neither available fix is one I should make here:
- Reproducing Git pathspec selection means implementing glob semantics, magic prefixes, and precedence inside the scorer. That is a large surface to get subtly wrong, and every future divergence from Git becomes a new false
wrong-mapping— trading a narrow gap for a wide one. - Preventing production from accepting pathspec metacharacters is the fix I actually think is right, but it changes
normalizeVerificationFilesinpackages/plugin, which this PR does not touch. A model mapping a claim by glob is arguably a production defect on its own terms:mappedFilesis meant to be the concrete backing set, and a pattern that resolves today can silently resolve to a different file after a rename.
This is the sixth path rule in that helper, and the root cause is the one I named last round: the scorer mirrors normalizeVerificationFiles instead of calling it. I would rather land the durable fix — make the scorers async, call production, and give the mutation harness a temporary repository — than keep adding rules, and I would rather raise the metacharacter question against production than quietly widen the mirror.
If you disagree and want the mirror extended now, say so and I will; I just do not want to add a glob implementation to a file whose stated job is to reproduce a function it could instead invoke.
| runFatal, | ||
| system: parseSystem(root.system, `${label}.system`), | ||
| trackedFiles: parseFilePathArray(root.trackedFiles, `${label}.trackedFiles`), | ||
| fixtureRoot: root.fixtureRoot === null ? null : parseFilePath(root.fixtureRoot, `${label}.fixtureRoot`), |
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When the host temp directory contains a comma, quote, angle bracket, or edge whitespace, createIsolatedEnv creates the fixture worktree beneath that valid filesystem path and the runner records it in fixtureRoot, but this applies restrictions designed specifically for comma-separated manifest attributes. The paid run therefore writes an otherwise valid report that parseRunReport rejects during variance aggregation. Validate fixtureRoot as an absolute host filesystem path rather than as a provider-emittable manifest path.
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Fixed in 29cda40 — mine, from when I added the field and reached for the nearest path validator.
fixtureRoot is now validated as an absolute host path: non-blank and rooted, with no character restrictions. parseFilePath's rules exist because a manifest lists paths comma-separated inside an XML attribute, which has nothing to do with where the host put its temp directory.
Verified the shapes you named — /tmp/a,b/dreamer-eval-x, /tmp/say "hi"/fx, /tmp/<odd>/fx, and a Windows C:\Temp\fx all parse now, null still parses for a pre-seeding failure, and a relative path is refused with path-not-absolute.
…ixture roots Address the tenth review round: - Catch a per-run throw in the CLI loop. Only aggregation was guarded, so a structural failure inside runDreamerEvalTask — provenance, or the artifact write — still escaped main and exited 1 without consulting the reports already collected, dropping an earlier repeat's safety exit 2. The loop now stops rather than continuing, since a structural fault repeats and every further repeat would spend model credits to fail the same way. - Validate fixtureRoot as an absolute host path. It was checked with parseFilePath, whose restrictions exist because a manifest lists paths comma-separated inside an XML attribute; a host temp directory may legitimately contain a comma, a quote, or edge whitespace, so an otherwise valid report was rejected for the shape of the machine's temp directory.
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| stdout: "pipe", | ||
| stderr: "ignore", | ||
| }); | ||
| return result.success ? result.stdout.toString().trim() : null; |
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When the first working-tree deviation is an unstaged-only tracked-file edit, Git porcelain v1 emits an XY prefix beginning with a space (for example M file.ts); git status -h confirms that -z only NUL-terminates these records. Calling trim() here removes that significant leading byte, so runtimeProvenance later slices a mangled pathname, fails to read the modified file, and hashes empty content. Repeated edits to that file can therefore retain the same runtimeDigest, allowing materially different evaluator/plugin bytes to aggregate as one experiment; preserve the raw status bytes and trim only outputs such as rev-parse that require it.
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Fixed in a0bc3a5. Sharp catch, and I measured it rather than taking it on faith — it is worse than a mangled path, it silences the digest for the most common dirty state.
git status --porcelain=v1 -z on a single unstaged edit emits " M packages/...", leading space included. Through gitOutput's trim():
RAW: ' M packages/e2e-tests/dreamer-eval/README.md' -> slice(3)='packages/e2e-tests/dreamer-eval/README.md'
TRIMMED: 'M packages/e2e-tests/dreamer-eval/README.md' -> slice(3)='ackages/e2e-tests/dreamer-eval/README.md'
So the read failed, the content hashed as empty, and I confirmed the consequence end to end by editing that file twice:
raw stdout -> digest moved: true
trimmed stdout -> digest moved: false
gitRawOutput now returns untrimmed stdout and gitOutput is a thin trimming wrapper over it. Both NUL-delimited calls use the raw form — the status scan and both ls-files -z reads, since with -z a path is emitted verbatim and could itself begin with a space — while rev-parse and the fixture HEAD checks keep the trim they need.
| mkdirSync(options.artifactDir, { recursive: true }); | ||
| writeFileSync(join(options.artifactDir, `${runId}.json`), `${JSON.stringify(report, null, 2)}\n`); |
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When this run successfully applies a gold-incorrect archival and then mkdirSync or writeFileSync fails, the promise rejects instead of returning the already-computed fatal report. The CLI's new per-run catch can preserve fatal reports from earlier repeats, but it never receives this run's report, so reports remains nonfatal and the process exits 1 rather than the required safety exit 2 even though the irreversible mutation committed. Persist or propagate the computed classification separately so an artifact I/O failure cannot erase a fatal result from the same run.
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Fixed in a0bc3a5. Correct that the per-run catch I added last round cannot help here: it only preserves what it receives, and a rejection carries no report.
The write is now wrapped, and on failure the runner throws DreamerEvalArtifactError, which carries the already-computed report. The CLI's catch pushes that report into reports before stopping, so the classification reaches dreamerEvalExitCode and an applied wrong archival still exits 2. The path is deliberately not added to groupReportPaths — the file is what failed to exist, so variance must not try to read it.
No unit test for this one: the write sits at the end of runDreamerEvalTask, after the harness and a live model call, so exercising it would need the write extracted behind a seam. Say the word if you want that refactor; I did not want to reshape the function's boundary from inside a review thread.
…ort on write failure
Address the eleventh review round:
- Read porcelain status and ls-files from raw stdout. gitOutput trims, and
porcelain's XY prefix begins with a space for an unstaged-only edit
(" M file.ts"), so trimming shifted every field of the first record: the
path slice named a file that could not be read, its content hashed as
empty, and further edits to it left runtimeDigest unchanged. Measured
both ways on a real unstaged edit — raw moves the digest, trimmed does
not.
- Carry the report when persisting it fails. The classification is already
decided and may record an irreversible mutation, so rejecting with only
the I/O error lost it: the caller never saw the report and an applied
wrong archival exited 1. DreamerEvalArtifactError carries the report and
the CLI counts it before stopping.
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magic-context/packages/e2e-tests/src/dreamer-eval/contract.ts
Lines 794 to 796 in a0bc3a5
Reject ambiguous empty map preconditions
When an in-scope map claim has a seeded mapping precondition with files: [], this check accepts it, but production selects that known-empty baseline only when shouldRequeueIndependentMapping finds a candidate path in the claim content. A claim without such a candidate is skipped, while an expected-skipped claim with an empty baseline and a candidate is requeued; both structurally valid scenarios therefore deterministically terminate at preflight with gate-mismatch instead of running. Derive the empty-baseline case with the production predicate or reject it from scenario preconditions.
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| if (trackedUnderOutput.split("\0").some((path) => path.length > 0)) { | ||
| throw new Error("dreamer-eval artifact directory must not contain tracked files"); |
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Fresh evidence after the tracked-file guard is that it accepts an output tree whenever git ls-files returns nothing, even if that tree contains untracked evaluator or plugin modules. If an API caller places artifactDir around such an imported untracked module, the later filter excludes the module from runtimeDigest, so changing its contents leaves the system tuple unchanged and materially different runs can be aggregated as repeats. Reject any artifact tree containing non-artifact runtime inputs, rather than treating absence from the index as sufficient.
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Fixed in f5e81bb, by dropping the tree-level trust rather than by extending the guard.
The exclusion now covers only the artifacts this lane writes — a .json file directly in the output directory, which is a run report or the group's variance.json — so nothing about the surrounding tree is trusted. An untracked module a caller places under artifactDir is hashed like any other deviation.
This is the option you suggested two rounds ago and I turned down because variance.json is written by the CLI rather than the runner; matching on the extension and the immediate directory covers both writers without either having to publish a filename list.
Verified: an untracked helper.ts under the output directory now moves the digest when its contents change, while a run-x.json and a variance.json written there do not. The tracked-file guard stays as well — it catches the case this cannot, an artifactDir at the repository root, where a dirty root-level .json such as package.json really is a runtime input.
| const deviations = status | ||
| .split("\0") | ||
| .filter((entry) => entry.length > 3) |
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When the dirty checkout contains a staged rename, porcelain v1 -z emits R <new>\0<old>\0; git status -h documents -z as terminating entries with NUL, and the installed CLI confirms the old path is a second field without an XY prefix. Splitting every field as an independent status entry makes the old path lose its third byte through slice(3), so distinct rename states whose old names differ at that byte can receive the same digest when the renamed contents match, despite exposing different runtime module paths. Parse the second rename field explicitly or disable rename detection before hashing.
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Fixed in f5e81bb with --no-renames. Reproduced the shape first on a scratch repository:
$ git mv a.ts b.ts
$ git status --porcelain=v1 -z --untracked-files=all | od -c
R b . t s \0 a . t s \0
$ ... --no-renames | od -c
D a . t s \0 A b . t s \0
So the old path is a bare field, my entry.length > 3 filter kept it, and slice(3) reduced a.ts to s — an unreadable path hashing as empty, exactly as you describe. With detection off, the same change is reported as a delete plus an add and every field is a record with its own XY prefix.
I chose disabling detection over parsing the pair because the digest does not need to know a change was a rename: it needs both path states and both contents, which the delete/add pair gives with no special case to keep correct.
| const absolute = join(PLUGIN_REPO_ROOT, path); | ||
| let content = ""; | ||
| try { | ||
| content = statSync(absolute).isFile() ? readFileSync(absolute, "utf8") : ""; |
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When a dirty runtime input is binary or merely contains invalid UTF-8, reading it with the "utf8" encoding replaces malformed byte sequences before hashing. Distinct inputs such as a byte 0xff versus 0xfe can therefore both hash as the same replacement character, allowing materially different WASM, native fixtures, or imported binary assets to retain one runtimeDigest and be aggregated as equivalent runs. Read a Buffer and hash its original bytes instead.
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Fixed in f5e81bb. File contents are now hashed with createHash("sha256").update(readFileSync(absolute)) over a Buffer, and the bundle digest and the final join moved to the same hasher so there is one hashing path.
Verified your exact case: a one-byte file holding 0xff and one holding 0xfe now produce different digests, where the UTF-8 decode collapsed both to the same replacement character. That mattered most for precisely the inputs you name — a WASM asset or a native fixture is the kind of dirty file whose bytes decide behaviour and whose text form says nothing.
…han by tree Address the twelfth review round: - Disable rename detection in the status scan. Porcelain v1 -z emits `R <new>\0<old>\0`, whose second field is a bare path with no XY prefix, so parsing it as a record dropped its first bytes and hashed it as unreadable. --no-renames reports the same change as a delete plus an add, each a proper record. - Hash working-tree files as raw bytes. A UTF-8 decode replaces every malformed sequence with one character, so two different binary inputs hashed alike and read as the same runtime. - Exclude only the artifacts this lane writes — a .json directly in the output directory — instead of the whole output tree. Trusting the tree hid an untracked module a caller placed under it, which the tracked-file guard cannot see either. Measured: 0xff and 0xfe now differ, an untracked module under the output directory moves the digest, and the lane's own report and variance artifacts still do not.
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| // an untracked module a caller happened to place under it, and an | ||
| // untracked module is invisible to the tracked-file guard above. | ||
| const absolute = resolve(PLUGIN_REPO_ROOT, entry.slice(3)); | ||
| return !(dirname(absolute) === outputRoot && absolute.endsWith(".json")); |
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Fresh evidence after narrowing the output-tree exclusion is that this predicate still treats every untracked .json directly under artifactDir as generated output. When an API caller places the output directory around a runtime JSON input (for example, a config or fixture read by the evaluator/plugin), the tracked-file guard accepts it and edits to that file are omitted from runtimeDigest, so materially different runs can share a system tuple and be aggregated as repeats. Match only the runner's report/variance filenames or explicitly track the files written by this run.
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| pluginEntry: PluginRuntimeSource; | ||
| runtimeDigest: string; | ||
| } { | ||
| const pluginEntry: PluginRuntimeSource = pluginEntryPath() === PLUGIN_BUNDLE_ENTRY ? "dist" : "src"; |
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Fresh evidence after the earlier provenance fix is that the entrypoint is still selected twice: this call records and hashes the current choice, while writeConfigs in opencode-runner/spawn.ts calls pluginEntryPath() again when the harness is created. If a concurrent build creates, removes, or replaces dist/index.js between these calls, the report can identify/hash src or the old bundle while OpenCode loads the new bundle, allowing runs with different plugin bytes to share a system tuple. Resolve the entry once and pass that exact path through to the spawner, or otherwise verify the loaded bytes after startup.
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Summary
Runs seeded scenarios through production Dreamer tasks, captures retained child output and operation receipts, and emits per-run reports plus variance summaries. The committed corpus covers core verify, mapping, classification, and broad-history pressure cases.
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