A first-touch Edit/Write denial marks the file checked so the retry
passes. Sibling edits to the same file in the same parallel batch are
therefore judged against post-denial state and silently apply, leaving
the file in a state neither version intended.
Hooks see tool calls one at a time, so a batch-wide lock is not
possible. Instead make the partial application explicit: the Edit,
Write, MultiEdit, and condensed denials now name the file and warn
that other edits from the same batch may already have been applied,
and SKILL.md tells agents to send dependent edits sequentially and
re-read the file after a gated batch.
Move stable hook metadata to a validated sidecar while preserving hook commands and installer identity. Reject moved fingerprints and duplicate IDs, and validate before updating metadata. Independent local review passed at c315271624a1fd055b992f2bff889ad2a0ff8a6b; CI run 34678210149 passed. Rollback: revert this squash commit.
Two cases the word-level rewrite still got wrong. Short options that take an optional stuck value (-u[mode], -S[keyid]) end the cluster scan, so git commit -uno and -Sn are allowed while -nu stays blocked. Git accepts any unambiguous long-option prefix, so --no-veri and --no-verif on commit, push, merge and rebase are now blocked; --no-verbose stays allowed. Quoted data such as -m "--no-verify" is still treated as data. Independent exact-head review probed 34 commands in-process and against real git with no bypass and no false positive; hook test 35/35, eslint clean, CI 44/44 at the head.
pre-bash-commit-quality spawned Windows .cmd/.bat linters unquoted, so a spaced path failed, and passed --format compact, which ESLint 9 removed (#3075). Batch executables now run through cmd.exe with each argument carried in an env token and quoted, with quote, NUL, CR and LF rejected before spawn; non-batch Windows and POSIX paths keep direct argv spawn with shell false. ESLint uses its bundled default formatter, present on 8, 9 and 10. Regression tests cover the batch, non-batch and POSIX branches and the formatter change. Independent exact-head review passed with no P0/P1; CI 44/44 at the head.
Address #2921 and complete the segment-anchoring direction in #2979. Preserve explicit absolute exemptions while denying accidental matches in unrelated projects.
Forward-port #2925 for #2924 and verify ASCII and multibyte over-limit input suppression. Supersedes the overlapping direct-entrypoint fix in #2978.
Co-authored-by: jackie-cqz <2557911191@qq.com>
Remove the redundant JSON-RPC initialize fallback from the consolidated MCP health-check batch. A routed 404 already proves the endpoint is reachable, and the real authenticated MCP call remains authoritative. Avoiding the fallback also prevents a stalled GET plus stalled POST from consuming twice the configured hook timeout.
Prevent stale /tmp/harness-cost cache files from affecting Sonnet 5, dated,
near-miss, and cache-rate pricing tests by using Date.now() in each session ID.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
The mcp-health-check preflight probes HTTP MCP servers with a bare GET.
Some Streamable HTTP servers route only POST /mcp and answer a bare GET
with 404 (Paper Desktop 0.5.3 is one). The probe scored that as down and
blocked every tool call for the server indefinitely, since the 30s
backoff just re-probes and re-fails.
A routed HTTP response of any status proves the endpoint is reachable,
which is all this preflight claims to check -- 400/401/403/405/406 are
already treated this way for the same reason. Add 404 to the set and let
the real MCP client validate the endpoint.
Adds a regression test that stands up a POST-only server (404 on GET,
200 on POST /mcp); it fails on the current code and passes with the fix.
The preflight probe in mcp-health-check only ever sent a bare GET to the
server URL. Some Streamable HTTP MCP servers route POST exclusively and
answer any GET with 404 — api.telnyx.com/v2/mcp is one — so the probe
failed permanently against a perfectly healthy server.
404 is not in HEALTHY_HTTP_CODES, so every probe failed, the backoff
compounded to the 10-minute ceiling, and the hook blocked every tool call
for that server before it left the machine while `claude mcp list` still
reported it Connected.
Replay a failed GET as a real JSON-RPC initialize POST and accept that as
proof of life. Whitelisting 404 was the alternative, but it would mask
genuine outages on every other server.
Adds a regression test with a POST-only server that 404s all GETs and
validates the initialize body; it fails without this change.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
