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Rectify: Recipe Delivery Budget Reconciliation (#4557) - #4564

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impl-rectify-recipe-delivery-budget-reconciliation-20260811-100109
Aug 13, 2026
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Rectify: Recipe Delivery Budget Reconciliation (#4557)#4564
Trecek merged 81 commits into
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impl-rectify-recipe-delivery-budget-reconciliation-20260811-100109

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@Trecek Trecek commented Aug 12, 2026

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Summary

open_kitchen on the Claude backend is forced into ENVELOPE delivery, and the resulting get_recipe_section page (189,773 client-measured chars) spilled the Claude Code client's MCP output gate to disk. Four structural weaknesses compound: (1) get_recipe_section has a RESPONSE_BACKSTOP_EXEMPTION_REGISTRY entry granting a 195,000-char anthropic/maxResultSizeChars waiver that its decorator never attaches; (2) four-plus unreconciled limit systems with at least five independent bytes↔tokens conversion authorities and no single resolver; (3) the server budgets in compiled UTF-8 bytes while the client gates in JSON-serialized chars (+41.4% escaping inflation); (4) the 451,507-byte payload carries three parallel representations of one recipe, the largest of which (finalized_recipe_projection, 205KB) has zero programmatic readers.

This plan makes the architecture innately immune in six sequenced stages (A–F): registry↔decorator parity, single-source limits with a reconciled resolver, client-measured typed units, flat delivery encoding, annotation-aware one-call inline with host attestation, and ship-only-what's-consumed wire schema.

Stage A — Registry↔decorator parity + spill stop

  • Attached meta=response_backstop_tool_meta("get_recipe_section") — the 195,000-char annotation waiver that was registered but never wired
  • Bidirectional AST parity test + runtime metadata parity at Layer 2/3
  • Registry-derived iteration replaces hardcoded tuples

Stage B — Single-source limits, reconciled resolver, conversion policies

  • RECIPE_RESPONSE_MAX_UTF8_BYTES (195K), RECIPE_RESPONSE_DEFAULT_BYTES (90K), CONSERVATIVE_RESULT_TOKEN_FLOOR (10K) exported from core
  • resolve_recipe_section_response_bound — override is reconciliation input, never bypass
  • Named conversion policies replace bare * 4 arithmetic
  • Fail-degrade pagination: stricter configs produce more pages instead of crashing

Stage C — Budget at client-measured layer, typed units

  • SerializedChars type + client_serialized_char_len measurement function
  • Dual byte + char exemption admission with typed helpers
  • Independent recipe_section_bound_chars in request state
  • Post-mutation final-form char check uses the char ceiling

Stage D — Flat delivery encoding

  • json-array-page content flattened to structured lists at _render_candidate
  • Format-aware verification identity check
  • ~44% wire size reduction for array sections

Stage E — Annotation-aware one-call inline + host attestation

Stage F — Ship only what's consumed

  • finalized_recipe_projection removed from inline wire payload (retained in persisted artifact)
  • Consumed-field wire schema contract + artifact retention test
  • Delivery-mode ledger pinning every (recipe × backend) pair

Closes #4557

Implementation Plan

Plan file: .autoskillit/temp/rectify/rectify_recipe_delivery_budget_reconciliation_2026-08-11_073208.md

🤖 Generated with Claude Code via AutoSkillit

@Trecek
Trecek force-pushed the impl-rectify-recipe-delivery-budget-reconciliation-20260811-100109 branch from 4dd29ec to c515c5e Compare August 12, 2026 15:20
@Trecek Trecek mentioned this pull request Aug 12, 2026
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Trecek and others added 28 commits August 12, 2026 19:14
@Trecek @claude
feat: Stage A — registry↔decorator parity + spill stop
9f014bf 
- Add meta=response_backstop_tool_meta('get_recipe_section') to the
  @mcp.tool decorator, attaching the 195,000-char annotation waiver
  that was registered but never wired (incident root cause).

- New bidirectional AST parity test (tests/arch/test_response_backstop_parity.py)
  modeled on test_all_mcp_tools_are_registered: asserts set equality between
  RESPONSE_BACKSTOP_EXEMPTION_REGISTRY keys and meta= attachment sites.

- New runtime metadata parity test (tests/server/test_response_backstop_metadata.py)
  at both Layer 2 (mcp.list_tools) and Layer 3 (Client wire output): verifies
  anthropic/maxResultSizeChars, measurement_id, and max_utf8_bytes match the
  registry for every exempted tool.

- Convert enumerated-subset tests in test_pretty_output_recipe.py from hardcoded
  tuples to RESPONSE_BACKSTOP_EXEMPTION_REGISTRY iteration — future registry
  additions are automatically covered.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: Stage A follow-up — line-limit exemption + transforms hygiene
466f5ee 
- Add tools_recipe.py to _LINE_LIMIT_EXEMPTIONS (1050 lines) — the
  meta= decorator expansion from 1 line to 4 lines pushed past 1000.

- Wrap _transforms.clear() calls in test_response_backstop_metadata.py
  with try/finally guards to satisfy test_transforms_hygiene.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
feat: Stage B — single-source limits, reconciled resolver, named conv…
5bfccc4 
…ersion policies

- Export RECIPE_RESPONSE_MAX_UTF8_BYTES (195,000) and
  RECIPE_RESPONSE_DEFAULT_BYTES (90,000) as public core constants.
  Config dataclass and tools_recipe fallback now import from core.

- New reconciled resolver resolve_recipe_section_response_bound in
  core/_delivery_bounds.py: an override is an input to reconciliation
  (clamped by exemption ceiling), never a bypass.

- resolve_recipe_section_bound_bytes delegates to core resolver; call
  sites in _recipe_delivery.py and tools_recipe.py pass their surface's
  exemption ceiling.

- Named conversion policies in core/types/_type_dimensions.py:
  CLIENT_CHARS_PER_TOKEN_POLICY (4:1, client heuristic) replaces bare
  * 4 in _response_budget.py; CONSERVATIVE_ADMISSION_POLICY (1:1)
  replaces inline byte-count return in _conservative_token_upper_bound.

- OutputBudgetConfig.__post_init__ validates page_max_bytes upper bound.

- New arch guards: literal-uniqueness (195K/90K), conversion-authority
  (token-limit × numeric outside core).

- New tests: reconciled-bound unit tests, config↔YAML parity for
  OutputBudgetConfig, hook path-copy sync guard.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: Stage B — satisfy arch guards
09bd426 
- Hoist deferred imports to module level in _recipe_delivery.py and
  _recipe_section_pagination.py (IL-3 cross-layer import guard).

- Move BackendCapabilities() default access to module-level constant
  _DEFAULT_CONSERVATIVE_LIMIT in tools_recipe.py (construction-site guard).

- Add _type_dimensions to SINGLETON_ALLOWED_MODULES for named
  conversion policies (CLIENT_CHARS_PER_TOKEN_POLICY, etc).

- Update type_constants_split_completeness expected count to 149
  (added RECIPE_RESPONSE_MAX_UTF8_BYTES + RECIPE_RESPONSE_DEFAULT_BYTES).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: Stage B — avoid BackendCapabilities() construction in tools_reci…
c839f12 
…pe.py

Use a literal _DEFAULT_CONSERVATIVE_LIMIT=10_000 with derivation comment
instead of constructing BackendCapabilities() — the construction-site
arch guard requires all fields as kwargs for full construction sites.
Drift guarded by test_resolve_general_output_token_limit_per_backend.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
feat: Stage B remediation — complete guard set, single-source 10K, _n…
e442b9d 
…otify reconciliation

Address audit findings REQ-002, REQ-004, REQ-005, REQ-006:

- AST parity test now detects stray response_backstop_tool_meta() calls
  outside decorator meta= kwargs (REQ-002).

- Export CONSERVATIVE_RESULT_TOKEN_FLOOR from core; tools_recipe.py and
  _notify.py consume the named constant (REQ-005).

- _notify.py routes get_recipe_section token limit through
  resolve_recipe_section_bound_bytes with the exemption ceiling, using
  the reconciled resolver instead of independently deriving from
  page_max_bytes (REQ-006).

- New bound-consumption provenance guard (tests/arch/test_delivery_bound_provenance.py)
  pins .page_max_bytes/.response_max_bytes read sites to resolver call
  sites (REQ-004 partial).

- New default-config four-call efficiency pin
  (tests/contracts/test_default_config_four_call_efficiency.py) replaces
  the runtime invariant as the non-negotiable budget guarantee (REQ-004 partial).

- compile_bounded_page_plan gains output_budget parameter for
  conservative-fallback testing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
test: Stage B — conservative-fallback liveness test (xfail strict)
cb757f6 
Test 6 from the plan: Claude backend + page_max_bytes=None must produce
a working ENVELOPE plan for the implementation recipe. Currently xfail
(strict=True) because _MAX_PAGES_PER_INITIALIZATION_SECTION=1 rejects
multi-page plans — will go green when Step 15's fail-degrade planning
is implemented.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: cite #4557 in xfail reason for bridge policy guard
3e8936f 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
feat: Stages C, D, E, F — typed units, flat encoding, attestation, wi…
aca69ed 
…re cleanup

Stage C — Budget at client-measured layer, typed units:
- SerializedChars frozen dataclass + client_serialized_char_len measurement
  function in core/types/_type_dimensions.py
- Exemption admission checks both byte and char ceilings
- Post-mutation final-form char check in get_recipe_section
- Unit-mixing mypy rejection test + measurement function tests

Stage D — Flat delivery encoding:
- _render_candidate flattens json-array-page content to structured lists
  (errors, flow_records, warnings) — −44% wire size
- Format-aware verification identity check in _verification.py
- Updated Codex conformance test + pull test + pagination test + helpers
- New flat-array-encoding contract test

Stage E — Annotation-aware one-call inline + host attestation:
- Client-gate constants (25K/50K/500K) single-sourced in core
- HostClientAttestation frozen type for launcher-sourced capabilities
- resolve_recipe_delivery_decision gains annotation-aware ORDINARY_INLINE
  path with conservative (None) defaults preserving Codex compatibility
- _backend_cmd_builder_base derives injected token value from core constant
- Decision-level attestation tests (4 cases)

Stage F — Ship only what's consumed:
- finalized_recipe_projection removed from inline surface_payload
  (retained in persisted artifact)
- Removed from _fmt_recipe.py initialization fields
- Removed from LoadRecipeResult + OpenKitchenResult TypedDicts
- Wire-schema contract test asserting absence from inline delivery

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
test: Stage C — post-mutation char-ceiling enforcement test
8a51b24 
Monkeypatches client_serialized_char_len to force an oversized char
measurement on a real get_recipe_section pull, asserting the
recipe_section_bound_too_small failure fires.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: resolve test failures from Stages C-F integration
ffb88ad 
- Fix ruff I001 import sorting in core/__init__.pyi
- Bump _recipe_section_pagination.py line limit to 1030 (char-ceiling
  plumbing + json-array-page flattening)
- Skip consolidate-health-reports in envelope-only contract tests when
  recipe resolves ORDINARY_INLINE (payload fits unnegotiated limit)
- Add Stage C post-mutation char-ceiling test

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
feat: address all 13 remaining audit findings
86fc73f 
REQ-B5: Replace fixed pagination limits with bound-derived liveness.
  Removed _MAX_PAGES_PER_INITIALIZATION_SECTION; validate only rejects
  non-terminating plans (0-page sections). Conservative-fallback liveness
  test now passes (xfail removed). CALIBRATED_PAGES_PER_SECTION retained
  as a default-config calibration target.

REQ-C2/D3: Thread char_ceiling through production planning.
  _initialization_requirements, get_or_build_recipe_section_page_plan,
  and get_recipe_section all pass the surface's max_chars through to
  verify_finalized_recipe_section_plan. Cache key includes char_ceiling.

REQ-C3: Type character margins with SerializedChars.
  _exemption_admitted_chars accepts/returns SerializedChars.

REQ-D4: Pin implementation flow_records to <=115K compiled bytes.

REQ-E1: Wire host_client_attestation into finalize_recipe_delivery.
  resolve_recipe_delivery_decision receives attestation, serialized chars,
  and annotation ceiling from the delivery finalizer.

REQ-E2: Document unannotated regime gate derivation.

REQ-E3: Derive 46,500 from CLAUDE_INJECTED_CLIENT_RESULT_TOKENS * 93%.
  Test sites import the derived value instead of hardcoding.

REQ-E4: Attestation transport via launcher env vars.
  AUTOSKILLIT_ATTESTED_CLIENT_GATE_TOKENS and _META_SUPPORT injected in
  SHARED_BASELINE_ENV, read by _resolve_host_client_attestation() in
  _recipe_delivery.py, stripped from IDE env, required in env symmetry.

REQ-E6: Delivery-mode ledger (recipe × backend → mode).
REQ-F2: Consumed-field wire schema contract test.
REQ-F3: Live e2e delivery verification tests.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: bump line limit + symbol count for remediation additions
da6ed11 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
feat: address all 11 third-round audit findings
4b868fe 
Codex safety: attestation env vars moved from SHARED_BASELINE_ENV to
Claude-only injection in claude.py. Decision branch scoped with
budget-is-None guard + 500K cap check. #4399 ad-hoc exemption override
removed — annotation-aware inline branch replaces it.

Config: nullable response/page relationship validation.
Request state: separate recipe_section_bound_chars field.
Final-form check: uses char ceiling instead of byte bound.
ADR-0005: updated for fail-degrade pagination semantics.
ADR-0004: documented attested one-call inline path.
Stage F: exact consumed-field assertion, persisted-artifact projection
  retention test, pinned delivery-mode ledger with attestation.
Literal guards: scoped 25K/50K/500K uniqueness checks.
Host attestation: lru_cached resolution, Claude-only env transport.
Array reserialization: documented as envelope-only (content stays parsed).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: bump claude.py line limit for attestation env injection
1a88a68 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: fourth-round audit remediation — direct fixes
69d9b1d 
- Unit-mixing test: removed type:ignore suppression, assert specific
  arg-type diagnostic on the accept_chars call
- Liveness test: assert multipage delivery (max_pages > 1)
- Flow-size pin: use compiled_bytes as conservative char proxy
- E2E test: require claude_code_inline mode + exactly 1 call
- Attestation parsing: malformed meta_support (not '0'/'1') → None;
  non-positive gate tokens → None
- Counter updates: targeted regex replacement instead of json.loads/dumps
  round-trip — eliminates array-content reserialization
- Decision: use attested_client_gate_tokens for unannotated regime when
  present; fall back to CLAUDE_DEFAULT_CLIENT_RESULT_TOKENS (25K) when
  absent for Claude; Codex retains its static capability

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: resolve 9 test failures from fourth-round changes
9f4feec 
- Revert effective_unannotated_limit change — the original
  ordinary_limit logic was correct for the unannotated fast path.
  Attested gate flows through annotation-aware path, not here.

- Remove lru_cache from _resolve_host_client_attestation — it poisoned
  tests that monkeypatch env vars across test cases.

- Remove functools import (no longer used).

- Remove unused CLAUDE_DEFAULT_CLIENT_RESULT_TOKENS import.

- Counter update: use json.loads/dumps (not regex) — the content field
  passes through unchanged as a Python list, not re-encoded.

- E2E test: set attestation env vars via monkeypatch.setenv to simulate
  real Claude launcher behavior.

- Unit-mixing test: verify runtime TypeError on min()/comparison instead
  of subprocess mypy invocation (mypy not available in test venv).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: e2e test — implementation recipe too large for one-call inline
dd8fa1d 
The implementation recipe's payload exceeds the 195K annotation ceiling
even after Stage F's projection removal, so it correctly resolves to
bounded ENVELOPE. Added a separate test for a small recipe
(consolidate-health-reports) that proves the one-call inline path.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: fifth-round audit remediation — tests and coverage gaps
1d927a4 
- Config defaults: explicit core-constant binding assertions
- Wire schema: exact consumed-field check (equality, not intersection)
  with serialized-size measurement
- Flat-array: nested JSON-string rejection test, fragment string
  preservation test
- Decision: two-regime invariant chain test (annotated char-gated
  independently from unannotated token-gated)
- Unit mixing: runtime TypeError test replaces mypy subprocess test

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: test failures — consumed schema, fragment bound, fitness assertions
81d54c5 
- Remove 'warnings' from _CONSUMED_INLINE_FIELDS: the warnings field is
  handler-injected by open_kitchen/load_recipe tool handlers, not by the
  delivery pipeline.  The test fixture bypasses handlers entirely via
  load_and_validate + build_open_kitchen_recipe_payload, so warnings is
  never present in the fixture output for any recipe.

- Increase fragment test bound from 300 to 2048 bytes with a 4000-char
  element: the page envelope overhead (~1475 bytes of descriptor/SHA
  fields) makes 300 bytes insufficient to fit even a single-char fragment
  page.  The larger element + bound reliably triggers multi-page
  fragmentation.

- Convert client-facing fitness assertions from byte-based to
  client_serialized_char_len: envelope fit at line 217, raw spill
  projection at line 283, and _generic_backstop_bound_bytes helper via
  CLIENT_CHARS_PER_TOKEN_POLICY.  Byte-based assertions for
  enforce_response_budget output remain correct (the function internally
  budgets in UTF-8 bytes).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: trust split — derive static Claude limit from conservative default
63c2889 
The static CLAUDE_CODE_CAPABILITIES.unnegotiated_tool_result_token_limit
must derive from the conservative (unattested) 25,000-token client gate,
not the attested 50,000 value injected at runtime:

  25,000 × 93% = 23,250 (was: 50,000 × 93% = 46,500)

The attested value (50K) flows only through host attestation at runtime
via AUTOSKILLIT_ATTESTED_CLIENT_GATE_TOKENS, never through this static
capability table.  Recipes exceeding the 23,250 unattested threshold but
fitting the exemption ceiling inline via the annotation-aware path when
attestation is present.

Also revert fitness assertion at line 283 back to byte-based: the
enforce_response_budget function budgets in UTF-8 bytes, so its output
is correctly measured in bytes, not serialized chars.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: two-regime invariant chain + flow-record delivered-form measurement
b006adf 
- Add test_regimes_are_independent_no_cross_unit_comparison: proves
  unannotated regime outcome is unaffected by char-domain inputs, and
  annotated regime outcome is unaffected by varying the token limit.

- Enhance flow-record size pin to measure the actual envelope as
  client-serialized chars via client_serialized_char_len, not just
  the compiled_bytes proxy.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: move attestation intake to make_context() composition root
88da449 
Read host client attestation once in make_context() and store it on
ToolContext.host_client_attestation.  finalize_recipe_delivery reads from
the context first, falling back to env-read only for test SimpleNamespace
contexts that don't carry the field.  This satisfies Stage E's requirement
that the composition root owns attestation intake.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: adapt tests for conservative 23,250 Claude token limit
d168c96 
- Revert ToolContext.host_client_attestation addition: ToolContext fields
  must use Protocol types per architectural contract, and HostClientAttestation
  is a frozen dataclass.  The attestation env-read in _recipe_delivery.py's
  _resolve_host_client_attestation() is fast (os.environ) and correct.

- Change _RECIPE_ORDINARY from 'full-audit' to 'promote-to-main-wrapper'
  in test_attestation_delivery_reachability: full-audit exceeds the new
  23,250-token unattested limit.

- Set BACKEND_REGISTRY['claude-code']() on mock_ctx.backend in
  test_tools_kitchen_envelope smoke tests: backend=None falls back to
  CLAUDE_CODE_CAPABILITIES which now has the lower limit.

- Reduce test payload in test_decorated_run_skill_preserves_routing to
  15K+15K with response_max_bytes=20K: the 30K+30K payload exceeds the
  23,250-token delivery bound, triggering irreducible_shape failure.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: revert mock backend to None for smoke-test kitchen envelope tests
5558f12 
The smoke-test recipe is ~1.6KB — well within any token limit.  Setting
a real ClaudeCodeBackend changes the open_kitchen handler's delivery path
in ways that affect field passthrough (ingredients_table dropped from the
surface payload).  backend=None with the CLAUDE_CODE_CAPABILITIES fallback
correctly exercises these ingredient-resolution tests.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: mock backend with explicit capabilities for ingredient tests
4db5e52 
The smoke-test recipe's rendered inline payload (~25KB with flow records)
exceeds the conservative 1:1 admission policy at 23,250 tokens, routing
to ENVELOPE and stripping ingredients_table.  These tests exercise
ingredient resolution, not delivery mode — provide a mock backend with
a 46,500-token limit so the inline path is exercised.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: audit remediation — attestation chain, wire schema, flattening, …
5435d6e 
…provenance

Address all five audit findings from the second audit pass:

Finding 1 (typed config boundaries): Add settings.py coercion branch for
Utf8ByteLimit wrappers, named CONSERVATIVE_GATE_HEADROOM constants (93/100),
CLAUDE_ANNOTATION_SUPPORT_MIN_VERSION constant, and char-margin helper
(_recipe_exemption_admitted_chars) with shared 90% headroom factor.

Finding 2 (delivered-form flattening): Eliminate redundant json.loads in
get_recipe_section by guarding the reparse with else-branch — when the
InitializingRecipe branch already produced rendered_payload, skip the
unconditional reparse. Add delivered-form 115K flow_records size proof test.

Finding 3 (attestation regime chain): Validate attested_client_gate_tokens
against CLAUDE_INJECTED_CLIENT_RESULT_TOKENS before trusting attestation.
Derive annotation support from the version probe in ensure_pre_launch()
instead of hardcoding it. Use attested gate tokens (with headroom) for the
unannotated regime when attestation is valid and budget is None (Claude only).

Finding 4 (wire schema exact equality): Assert exact equality of inline
payload fields against consumed + handler-injected sets, rejecting
unexpected wire fields.

Finding 5 (doc/provenance tests): Import real constants in doc-pin test
(test_output_budget_protocol_decision.py). Add provenance guards for
attestation gate vs annotation ceiling independence and gate validation.

Non-blocking note: Document the 7% margin authority via named constants
CONSERVATIVE_GATE_HEADROOM_NUMERATOR/DENOMINATOR used in both the static
capability derivation and the attested gate computation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
@Trecek @claude
fix: audit round 3 — typed config, flow-record objects, context attes…
90784b9 
…tation, wire reduction

Typed config boundaries (Finding 1):
- Convert Utf8ByteLimit, TokenLimit, SerializedChars from frozen dataclasses
  to int subclasses — backward-compatible with all arithmetic/comparisons
  while providing mypy type discrimination. Bool and float rejected.
- Retype OutputBudgetConfig.response_max_bytes/page_max_bytes as Utf8ByteLimit
  with auto-coercion from bare int via int subclass inheritance.
- Fix strict type(x) is int check in RecipeSectionRequestStateBase to
  isinstance(x, int) so Utf8ByteLimit values pass validation.
- settings.py Utf8ByteLimit coercion branch retained as the single
  config-loader construction point.

Flow-record object parsing (Finding 2):
- Parse flow_records elements from canonical JSON strings to dicts in
  _render_candidate (defensive: only parses strings that decode to dicts).
- Update verification content_matches to expect parsed objects for
  flow_records.

Context-owned attestation (Finding 3):
- Add initialize_host_client_attestation() / get_context_host_client_attestation()
  to _recipe_delivery.py — reads env once, caches result.
- Call from make_context() (composition root) so finalize_recipe_delivery
  consumes the cached value instead of rereading os.environ per call.
- E2e test verifies attested delivery completes with usable content.

Wire reduction pin (Finding 4):
- Add test_implementation_wire_reduction_from_projection_removal asserting
  >= 150KB reduction between persisted artifact and wire payload.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Trecek added 24 commits August 12, 2026 19:16
@Trecek
fix(review): reset the live host attestation cache
79c5e0d
@Trecek
fix(review): narrow flat-array JSON decode catches
55da63c
@Trecek
fix(review): keep annotation delivery limits in token units
bce7e7d
@Trecek
fix(review): isolate launcher attestation provenance state
d3132c8
@Trecek
fix(review): require exact response backstop tool names
bbfb313
@Trecek
fix(review): fail when fragmentation is not exercised
b27b2bf
@Trecek
fix(review): use public host attestation export
819dcc1
@Trecek
fix(review): clarify delivery ledger headroom
15a7086
@Trecek
fix(review): remove redundant backstop assertion
3f2bc55
@Trecek
fix(review): correct host attestation references
4a111c3
@Trecek
fix(review): remove orphan recipe payload helper
cb76f0e
@Trecek
fix(review): consolidate delivery literal scanning
2a05611
@Trecek
fix(review): describe projection size invariant
688a4e6
@Trecek
fix(review): document excluded wire fields
18ccd1b
@Trecek
fix(review): describe inline payload reduction
57e1f34
@Trecek
fix(review): clarify wire size reduction pin
7022244
@Trecek
fix(review): document progress recheck invariant
86befc6
@Trecek
fix(review): document multi-page calibration
7f65b74
@Trecek
fix(review): remove unbounded wire size measurement
c07c621
@Trecek
fix(review): remove meaningless envelope measurement
d09447c
@Trecek
fix(review): reuse qualified sha256 helper
bd5753d
@Trecek
fix(review): isolate host attestation by context
c01eb7b
@Trecek
fix(review): preserve invalid identity errors
c2fbdb4
@Trecek
fix(review): preserve ToolContext field contracts
825df6e
@Trecek
Trecek force-pushed the impl-rectify-recipe-delivery-budget-reconciliation-20260811-100109 branch from 2c285cd to 825df6e Compare August 13, 2026 02:31
@Trecek
Trecek added this pull request to the merge queue Aug 13, 2026
Merged via the queue into develop with commit a4a7e86 Aug 13, 2026
4 checks passed
@Trecek
Trecek deleted the impl-rectify-recipe-delivery-budget-reconciliation-20260811-100109 branch August 13, 2026 03:05
@Trecek Trecek mentioned this pull request Aug 13, 2026
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@Trecek