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---
id: review-002-cov13-dead-code
name: Delete dead accessors and FromRef impls — resolve_bearer wire-or-delete decision (COV-13)
status: completed
depends_on: []
scope: single
risk: low
impact: component
level: implementation
tags: [infra, review-002, coverage]
---
## Description
Review 002 COV-13: code confirmed dead by the coverage pass (every
binary, zero hits, nothing extracts these types) — delete rather than
test:
- `server/state.rs:75-83` — both `FromRef` impls
(`Arc<OperationRegistry>`, `Arc<dyn IdentityProvider>`): no route
extracts these types (the middleware takes state directly)
- `gateway/dispatch.rs:74-76, 79-81``identity_provider()` accessor
(dead) and `resolve_bearer()` accessor — the latter's doc **promises
an auth hook the middleware never calls** (spec/code drift): decide
wire-or-delete (if the hook concept matters for a future assembly-
layer story, wire it into `bearer_auth_middleware`/`ws_bearer_auth`;
otherwise delete)
- `websocket/upgrade.rs:145-147` — `FromRef<SessionState> for
Arc<OperationRegistry>` (dead extractor)
- `to_mcp.rs` — `PRJ-24`'s dead `search_filter` parameter is owned by
review-002-projection-truthfulness; only handle it here if that task
did not
## Acceptance Criteria
- [ ] All dead items deleted (or resolve_bearer wired, with the doc
claim made true, if the hook decision says wire)
- [ ] `cargo build` + full test matrix green — the deletions prove
nothing referenced them (coverage claim verified)
- [ ] `cargo test`, `cargo clippy --all-targets -- -D warnings`,
`cargo fmt --check` pass
## References
- docs/reviews/002-post-remediation-review.md (Part G', COV-13)
- src/server/state.rs:75-83, src/gateway/dispatch.rs:74-81, src/websocket/upgrade.rs:145-147
- tasks/infra/review-002-cov-deployment-knobs.md (the coverage pass's live-code work — separate from this dead-code sweep)
## Notes
Small, zero-risk deletion sweep. Good pairing with any other session's
warm-up. If the `resolve_bearer` hook-decision feels non-obvious
(needs an ADR or design note), default to delete — dead code with an
aspirational doc claim is worse than no hook; a real hook can be added
when a concrete assembly-layer need exists.
## Summary
Merge note: resolved alongside mcp-batch-cap (invoke_count accessor kept, identity_provider/resolve_bearer deleted single-arg constructor).