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Cache OpenCode usage sessions - #18

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ygpark80 merged 1 commit into
mainfrom
feat/opencode-usage-cache
Aug 10, 2026
Merged

Cache OpenCode usage sessions#18
ygpark80 merged 1 commit into
mainfrom
feat/opencode-usage-cache

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@ygpark80

@ygpark80 ygpark80 commented Aug 10, 2026

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Changes

  • reuse validated OpenCode sessions from the XDG cache before scanning browser profiles
  • rescan browsers when cached sessions expire or OpenCode rejects them
  • preserve browser cookie expiry metadata and atomically replace the cache with restrictive permissions
  • avoid browser rescans for unrelated network failures

Testing

  • go test -mod=vendor -race ./...
  • go vet -mod=vendor ./...
  • Linux amd64 and macOS arm64 cross-builds
  • live first-run cache creation and second-run cache reuse

Notes

  • the cache defaults to ${XDG_CACHE_HOME:-$HOME/.cache}/prism/opencode-go/sessions.json

CodeAnt-AI Description

Reuse valid OpenCode sessions and refresh them when authentication expires

What Changed

  • Reuses a valid OpenCode browser session from the local cache instead of scanning browser profiles on every usage request
  • Stores session cookies with expiration details, removes expired or unsupported entries, and protects the cache with restrictive permissions
  • Re-scans supported browsers when OpenCode rejects a cached login, then replaces the cache after a successful refresh
  • Returns network failures directly without triggering an unnecessary browser scan
  • Preserves cookie expiration information while reading Chrome and Firefox sessions

Impact

✅ Faster OpenCode usage checks
✅ Fewer browser scans
✅ Automatic recovery from expired logins

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🤖 CodeAnt AI — Review Status

Status Commit Started (UTC) Finished (UTC)
✅ Reviewed your PR 46a5fe5 Aug 10, 2026 · 07:40 07:42

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Run ID: 5d5ac577-cae7-49c2-8bbb-3fc585e1d450

📥 Commits

Reviewing files that changed from the base of the PR and between 9495dfe and 46a5fe5.

📒 Files selected for processing (5)
  • internal/opencodego/cache.go
  • internal/opencodego/cache_test.go
  • internal/opencodego/session_darwin.go
  • internal/opencodego/usage.go
  • internal/opencodego/usage_test.go

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@codeant-ai codeant-ai Bot added the size:L This PR changes 100-499 lines, ignoring generated files label Aug 10, 2026
@ygpark80
ygpark80 merged commit aeef5b0 into main Aug 10, 2026
1 check passed
@ygpark80
ygpark80 deleted the feat/opencode-usage-cache branch August 10, 2026 07:40
Comment on lines 129 to +158
@@ -136,7 +136,8 @@ func chromiumSession(product chromiumProduct, profile string, database string, n
scan.invalidCookies++
continue
}
if chromeCookieExpired(fields[3], now) {
expiresAt, persistent := chromeCookieExpiresAt(fields[3])
if persistent && !expiresAt.After(now) {
scan.expiredCookies++
continue
}
@@ -154,7 +155,7 @@ func chromiumSession(product chromiumProduct, profile string, database string, n
scan.invalidCookies++
continue
}
cookies[fields[0]] = value
cookies[fields[0]] = browserCookie{name: fields[0], value: value, expiresAt: expiresAt}

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Suggestion: Cookies are keyed only by name, so rows for the host-only and domain cookies (or multiple cookies during rotation) overwrite one another. Because the SQL query has no ordering, the selected value is nondeterministic and may be the invalid or stale credential even when another valid cookie exists. Preserve the relevant cookie variants or choose the valid cookie deterministically before constructing the request. [logic error]

Severity Level: Major ⚠️
- ❌ OpenCode usage retrieval can select an invalid cookie.
- ⚠️ Users may see login failures despite valid browser sessions.

Fix in Cursor Fix in VSCode Claude

Prompt for AI Agent 🤖
This is a comment left during a code review.

**Path:** internal/opencodego/session_darwin.go
**Line:** 129:158
**Comment:**
	*Logic Error: Cookies are keyed only by name, so rows for the host-only and domain cookies (or multiple cookies during rotation) overwrite one another. Because the SQL query has no ordering, the selected value is nondeterministic and may be the invalid or stale credential even when another valid cookie exists. Preserve the relevant cookie variants or choose the valid cookie deterministically before constructing the request.

Validate the correctness of the flagged issue. If correct, How can I resolve this? If you propose a fix, implement it and please make it concise.
Once fix is implemented, also check other comments on the same PR, and ask user if the user wants to fix the rest of the comments as well. if said yes, then fetch all the comments validate the correctness and implement a minimal fix
👍 | 👎

Comment on lines +97 to +103
sessionRejected := false
for _, session := range sessions {
body, err := fetchPage(ctx, client, baseURL+"/zen", session)
if err != nil {
if errors.Is(err, errOpenCodeSessionRejected) {
sessionRejected = true
}

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Suggestion: The rejection flag is updated only for /zen requests, while workspace /go requests can also return the newly classified errOpenCodeSessionRejected. If /zen succeeds but /go returns 401 or 403, this function returns a nil top-level error with an account-level usage error, so Fetch treats the cached session as successful and does not rescan browsers. Track session rejection during workspace requests and return errOpenCodeSessionInvalid when the cached login is rejected. [api mismatch]

Severity Level: Major ⚠️
- ❌ OpenCode usage displays unavailable account data.
- ⚠️ Rejected sessions remain cached instead of refreshing.
- ⚠️ Browser rescanning is skipped on subsequent usage commands.

Fix in Cursor Fix in VSCode Claude

Prompt for AI Agent 🤖
This is a comment left during a code review.

**Path:** internal/opencodego/usage.go
**Line:** 97:103
**Comment:**
	*Api Mismatch: The rejection flag is updated only for `/zen` requests, while workspace `/go` requests can also return the newly classified `errOpenCodeSessionRejected`. If `/zen` succeeds but `/go` returns 401 or 403, this function returns a nil top-level error with an account-level usage error, so `Fetch` treats the cached session as successful and does not rescan browsers. Track session rejection during workspace requests and return `errOpenCodeSessionInvalid` when the cached login is rejected.

Validate the correctness of the flagged issue. If correct, How can I resolve this? If you propose a fix, implement it and please make it concise.
Once fix is implemented, also check other comments on the same PR, and ask user if the user wants to fix the rest of the comments as well. if said yes, then fetch all the comments validate the correctness and implement a minimal fix
👍 | 👎

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