* fix(hooks): fail open on oversized stdin instead of echoing truncated JSON (#2222)
run-with-flags.js capped stdin at 1MB but every fallthrough path still
echoed the truncated string to stdout. The harness parses hook stdout as
JSON, got a document cut mid-stream, and blocked the tool call — so any
Edit/Write with a >1MB hook payload was permanently blocked by every
registered pre-write hook, before ECC_HOOK_PROFILE / ECC_DISABLED_HOOKS
gating could run.
- Exit 0 with empty stdout (no opinion) when the stdin cap trips, before
any echo or gating logic.
- Flush stdout via write callback before process.exit: exiting right
after stdout.write() dropped everything past the ~64KB pipe buffer,
cutting even sub-cap pass-through payloads mid-JSON.
Regression tests cover the enabled, disabled, and missing-arg paths for
oversized payloads plus full echo of sub-cap >64KB payloads.
* fix(codex): stop emitting invalid exa url entry, align merge with connector policy (#2224)
The Codex MCP merge declared exa with a url key, but Codex's
[mcp_servers.*] TOML schema is stdio-only — the url key makes the
entire config.toml fail to load, bricking both the codex CLI and the
desktop app. Every install/update re-injected the line because the
urlEntry branch treated the broken entry as present.
- ECC_SERVERS now emits only the current default set per
docs/MCP-CONNECTOR-POLICY.md: chrome-devtools (stdio, command/args).
Retired servers (supabase, playwright, context7, exa, github, memory,
sequential-thinking) are never re-emitted; existing user-managed
entries are untouched.
- The merge now repairs the exact ECC-emitted broken form (url-only
exa entry) on every run so re-running the installer fixes broken
configs instead of preserving them. User stdio exa entries
(command + mcp-remote) are left alone.
- check-codex-global-state.sh requires chrome-devtools instead of the
retired set, and flags url-only exa entries with a repair hint.
Tests cover repair, re-run idempotence, stdio-entry preservation, and
no-retired-server emission in add, update, dry-run, and disabled modes.
* fix(hooks): never echo truncated stdin from Stop hooks (#2090)
Stop hooks follow the ECC pass-through convention (echo stdin on
stdout), but every echoing Stop hook capped stdin and echoed the capped
string. The Stop payload carries last_assistant_message, so a long
final assistant message produced a JSON document cut mid-stream on
stdout, which the harness reports as 'Stop hook error: JSON validation
failed' across the whole Stop chain.
Reproduced: a Stop payload with a >64KB last_assistant_message run
through run-with-flags + cost-tracker emitted exactly 65536 bytes of
invalid JSON (cost-tracker capped stdin at 64KB — far below realistic
Stop payloads).
- cost-tracker: raise the cap to 1MB (matching all other hooks) and
suppress the pass-through echo when stdin was truncated.
- check-console-log, stop-format-typecheck, desktop-notify: suppress
the echo when stdin was truncated; flush stdout before process.exit
so sub-cap payloads are not cut at the ~64KB pipe buffer.
- All hooks keep exiting 0 (fail-open); diagnostics go to stderr.
New stop-hooks-stdout test asserts the contract for every registered
Stop hook: stdout is empty or valid JSON, exit code 0 — for realistic
100KB payloads and oversized >1MB payloads, via the production runner
and via direct invocation. Updated the old hooks.test.js case that
codified the truncated-echo behavior.
* fix(hooks): dampen GateGuard fact-force repetition in long sessions (#2142)
In long autonomous sessions the fact-force gate produced 10+
near-identical 'state facts -> blocked -> restate -> retry' blocks in
one context window, which measurably raises the odds of the model
collapsing into a degenerate single-token repetition loop.
- Track a per-session fact_force_denials counter in GateGuard state
(merged max across concurrent writers, reset with the session, robust
to malformed on-disk values).
- The first GATEGUARD_FACT_FORCE_FULL_DENIALS denials (default 3) keep
the full four-fact block; later denials emit a condensed single-line
message that carries the denial ordinal, so consecutive denials are
structurally different and never textually identical.
- True retries of the same target remain allowed without re-prompting
(unchanged). Destructive-Bash and routine-Bash gates are unchanged,
as are the ECC_GATEGUARD=off / ECC_DISABLED_HOOKS escape hatches.
Eight new tests cover budget counting, condensed format, ordinal
advancement, retry pass-through, env tuning, malformed state, MultiEdit
dampening, and destructive-gate exemption.
* fix(hooks): keep security hooks able to block on oversized stdin (#2222)
Refine the truncation fail-open: instead of skipping the hook entirely,
the runner now suppresses only its own raw-echo when stdin was
truncated. The hook still executes and receives the truncated flag
(run() context / ECC_HOOK_INPUT_TRUNCATED), so config-protection keeps
blocking truncated protected-config payloads (its test requires exit 2)
while pass-through hooks fail open with empty stdout as before.
* style: apply repo formatter to touched hook files
Ghostty natively supports the OSC 9 desktop-notification escape
(ESC ] 9 ; <message> BEL), the same sequence already used for iTerm2.
Previously only TERM_PROGRAM === 'iTerm.app' took the escape path, so
Ghostty users fell through to the osascript path. That makes Script
Editor the notification owner, and clicking the notification just
launches Script Editor instead of focusing the terminal.
Adding 'ghostty' to the OSC 9-capable check makes Ghostty the owner,
so clicking the notification focuses the Ghostty window/tab where
Claude Code is running. Verified on Ghostty (TERM_PROGRAM=ghostty).
Co-authored-by: 高野智史 <satoshitakano@takanosatoshinoMacBook-Pro-522.local>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(hooks): add WSL desktop notification support via PowerShell + BurntToast
Adds WSL (Windows Subsystem for Linux) desktop notification support to the
existing desktop-notify hook. The hook now detects WSL, finds available
PowerShell (7 or Windows PowerShell), checks for BurntToast module, and
sends Windows toast notifications.
New functions:
- isWSL(): detects WSL environment
- findPowerShell(): finds PowerShell 7 or Windows PowerShell on WSL
- isBurntToastAvailable(): checks if BurntToast module is installed
- notifyWindows(): sends Windows toast notification via BurntToast
If BurntToast is not installed, logs helpful tip for installation.
Falls back silently on non-WSL/non-macOS platforms.
* docs(hooks): update desktop-notify description to include WSL
Updates the hook description in hooks.json to reflect the newly
added WSL notification support alongside macOS.
* fix(hooks): capture stderr properly in notifyWindows
Change stdio to ['ignore', 'pipe', 'pipe'] so stderr is captured
and can be logged on errors. Without this, result.stderr is null
and error logs show 'undefined' instead of the actual error.
* fix(hooks): quote PowerShell path in install tip for shell safety
The PowerShell path contains spaces and needs to be quoted
when displayed as a copy-pasteable command.
* fix(hooks): remove external repo URL from tip message
BurntToast module is a well-known Microsoft module but per project
policy avoiding unvetted external links in user-facing output.
* fix(hooks): probe WSL interop PATH before hardcoded paths
Adds 'pwsh.exe' and 'powershell.exe' as candidates to leverage
WSL's Windows interop PATH resolution, making the hook work with
non-default WSL mount prefixes or Windows drives.
* perf(hooks): memoize isWSL detection at module load
Avoids reading /proc/version twice (once in run(), once in findPowerShell())
by computing the result once when the module loads.
* perf(hooks): reduce PowerShell spawns from 3 to 1 per notification
Merge findPowerShell version check and isBurntToastAvailable check
into a single notifyWindows call. Now just tries to send directly;
if it fails, tries next PowerShell path. Version field was unused.
Net effect: up to 3 spawns reduced to 1 in the happy path.
* fix(hooks): remove duplicate notifyWindows declaration
There were two notifyWindows function declarations due to incomplete
refactoring. Keeps only the version that returns true/false for the
call site. Node.js would throw SyntaxError with 'use strict'.
* fix(hooks): improve error handling and detection robustness
- Increase PowerShell detection timeout from 1s to 3s to avoid false
negatives on slower/cold WSL interop startup
- Return error reason from notifyWindows to distinguish BurntToast
module not found vs other PowerShell errors
- Log actionable error details instead of always showing install tip
---------
Co-authored-by: boss <boss@example.com>
- Check spawnSync result and log warning on failure via stderr
- Restore osascript timeout to 5000ms, increase hook deadline to 10s
for sufficient headroom
- Replace JSON.stringify with curly quote substitution for AppleScript
compatibility (AppleScript does not support \" backslash escapes)
- Reduce spawnSync timeout from 5000ms to 3000ms to leave headroom
within the 5s hook deadline
Add a new Stop hook that sends a native macOS notification with the
task summary (first line of last_assistant_message) when Claude finishes
responding. Uses osascript via spawnSync for shell injection safety.
Supports run-with-flags fast require() path. Only active on standard
and strict profiles; silently skips on non-macOS platforms.
Affaan Mustafa ·
satoshi-takano-bloom ·
QWsin ·
Jonghyeok Park ·