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+---
+phase: 06-http-routing-auth-groups-and-rate-limiting
+plan: 10
+subsystem: auth
+tags: [inv-scope, wire-json, php-parity, regression-tests]
+
+requires:
+  - phase: 06-http-routing-auth-groups-and-rate-limiting
+    provides: bouncer user/credential context, InvScope middleware, and shared wire.WriteJSON response conventions
+provides:
+  - Byte-exact no-newline InvScope 401 and 403 denial responses
+  - Raw-byte regression assertions for missing-user, missing-scope, and wrong-credential denial paths
+affects: [phase-06-verification, personal-token-routes, php-parity]
+
+tech-stack:
+  added: []
+  patterns:
+    - Security denial middleware delegates JSON serialization to the shared PHP-compatible wire writer
+    - Wire-contract tests compare recorder bytes before decoding response shape
+
+key-files:
+  created: []
+  modified:
+    - fonoteka.go/plugins/golem15/fonoteka/middleware/token_scope.go
+    - fonoteka.go/plugins/golem15/fonoteka/middleware/token_scope_test.go
+
+key-decisions:
+  - "Use wire.WriteJSON for both InvScope denial branches so authentication and scope errors share the established PHP-compatible no-newline serialization path"
+  - "Assert exact response bytes before secondary JSON shape checks; denial tests must never normalize whitespace"
+
+patterns-established:
+  - "TokenScope parity: status, Content-Type, and raw body bytes are one indivisible HTTP contract"
+
+requirements-completed: [HTTP-05, HTTP-06]
+
+duration: 3h 15m
+completed: 2026-09-20
+---
+
+# Phase 6 Plan 10: Exact InvScope Denial Bodies Summary
+
+**Personal-token scope denials now use `wire.WriteJSON`, producing PHP-byte-identical 401/403 bodies with raw-byte tests that fail on any newline or carriage return**
+
+## Performance
+
+- **Duration:** 3h 15m elapsed (including sandbox approval wait)
+- **Started:** 2026-09-20T19:10:39Z
+- **Completed:** 2026-09-20T22:26:07Z
+- **Tasks:** 1 TDD task
+- **Files modified:** 2
+
+## Accomplishments
+
+- Replaced InvScope's local `json.Encoder` response helper with the framework's PHP-compatible `wire.WriteJSON` for both denial branches.
+- Added exact raw-body assertions for the 401 missing-user and 403 missing-scope cases, including explicit final-`}` and no-CR/LF checks.
+- Kept JSON decoding as a secondary envelope check and preserved the valid-scope next-handler and wrong-credential fail-closed behavior.
+
+## Task Commits
+
+Each TDD stage was committed atomically in the `fonoteka.go` repository:
+
+1. **RED: Assert exact InvScope denial bytes** - `bf3f8a0` (test)
+2. **GREEN: Emit exact InvScope denial bodies** - `d43cc76` (fix)
+
+**Plan metadata:** (this commit)
+
+_No refactor commit was needed; the production change is the minimal shared-writer delegation._
+
+## Files Created/Modified
+
+- `fonoteka.go/plugins/golem15/fonoteka/middleware/token_scope.go` - delegates 401/403 serialization to `wire.WriteJSON` and removes the local encoder helper.
+- `fonoteka.go/plugins/golem15/fonoteka/middleware/token_scope_test.go` - compares exact recorder bodies, asserts JSON content type, forbids CR/LF bytes, and retains decoded shape checks.
+
+## Decisions Made
+
+- Both denial branches use the existing framework writer rather than duplicating newline trimming in app middleware.
+- Exact bytes are asserted before JSON decoding so semantically valid but wire-incompatible whitespace cannot pass.
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+- The first sandboxed Go verification could not write to the shared Go build cache; rerunning the same bounded command with approved cache access passed. This was an execution-environment constraint, not a code defect.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## TDD Gate Compliance
+
+- RED: `bf3f8a0` demonstrated all three denial bodies carried the unwanted trailing newline.
+- GREEN: `d43cc76` switched both branches to `wire.WriteJSON`; the exact tests passed under `-race`.
+- REFACTOR: omitted because the minimal implementation already removed the redundant helper.
+
+## Verification
+
+- `go test ./plugins/golem15/fonoteka/middleware -run 'TestInvScope' -count=1 -race -short` - pass
+- `go vet ./plugins/golem15/fonoteka/middleware` - pass
+- `go test ./plugins/golem15/fonoteka/... -count=1 -short` - pass
+- Acceptance greps - two `wire.WriteJSON` calls present; no `json.NewEncoder`, local `writeJSON`, `TrimSpace`, or normalized denial-body comparison.
+
+## Known Stubs
+
+None.
+
+## Threat Flags
+
+None. The change narrows an existing authentication response serialization path and introduces no new endpoint, trust boundary, file access, or schema surface.
+
+## Next Phase Readiness
+
+- The fourth authoritative Phase 6 verification gap is closed; Plan 06-11 can perform final coverage and phase closeout.
+- No blockers.
+
+## Self-Check: PASSED
+
+- FOUND: both modified middleware files.
+- FOUND: `bf3f8a0` and `d43cc76` in the `fonoteka.go` history.
+- PASS: exact InvScope tests, middleware vet, and full Fonoteka plugin suite.
+- PASS: no generated or untracked files in `fonoteka.go`; the pre-existing main-repo `go.work.sum` remains untouched.
+
+---
+*Phase: 06-http-routing-auth-groups-and-rate-limiting*
+*Completed: 2026-09-20*