fix: stability batch — hook stdin truncation, Codex exa TOML, Stop hook JSON, GateGuard repetition (#2227)

* 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
This commit is contained in:
Affaan Mustafa
2026-06-11 00:31:33 -04:00
committed by GitHub
parent 3bdb4a5e12
commit 6319c7d309
14 changed files with 846 additions and 151 deletions

View File

@@ -107,11 +107,11 @@ if [[ -f "$CONFIG_FILE" ]]; then
check_config_pattern '^\[profiles\.strict\]' "profiles.strict exists"
check_config_pattern '^\[profiles\.yolo\]' "profiles.yolo exists"
# Current default connector set (docs/MCP-CONNECTOR-POLICY.md): exactly
# one connector. Former defaults (github, memory, sequential-thinking,
# context7, exa, ...) are opt-in user choices, so they are not required.
for section in \
'mcp_servers.github' \
'mcp_servers.memory' \
'mcp_servers.sequential-thinking' \
'mcp_servers.context7'
'mcp_servers.chrome-devtools'
do
if search_file "^\[$section\]" "$CONFIG_FILE"; then
ok "MCP section [$section] exists"
@@ -120,25 +120,17 @@ if [[ -f "$CONFIG_FILE" ]]; then
fi
done
has_context7_legacy=0
has_context7_current=0
if search_file '^\[mcp_servers\.context7\]' "$CONFIG_FILE"; then
has_context7_legacy=1
fi
if search_file '^\[mcp_servers\.context7-mcp\]' "$CONFIG_FILE"; then
has_context7_current=1
fi
if [[ "$has_context7_legacy" -eq 1 || "$has_context7_current" -eq 1 ]]; then
ok "MCP section [mcp_servers.context7] or [mcp_servers.context7-mcp] exists"
else
fail "MCP section [mcp_servers.context7] or [mcp_servers.context7-mcp] missing"
fi
if [[ "$has_context7_legacy" -eq 1 && "$has_context7_current" -eq 1 ]]; then
warn "Both [mcp_servers.context7] and [mcp_servers.context7-mcp] exist; prefer one name"
# ECC <= 2.0.0 emitted a url-only exa entry that Codex's stdio-only
# schema rejects, breaking the whole config (#2224). Flag it so users
# re-run the sync (which repairs it) or remove it manually.
if search_file '^\[mcp_servers\.exa\]' "$CONFIG_FILE"; then
exa_block="$(awk '/^\[mcp_servers\.exa\]/{flag=1;next}/^\[/{flag=0}flag' "$CONFIG_FILE")"
if printf '%s\n' "$exa_block" | grep -Eq '^[[:space:]]*url[[:space:]]*=' \
&& ! printf '%s\n' "$exa_block" | grep -Eq '^[[:space:]]*command[[:space:]]*='; then
fail "MCP section [mcp_servers.exa] uses a url key, which Codex rejects for stdio servers — re-run ecc-sync-codex to repair (#2224)"
else
ok "MCP section [mcp_servers.exa] uses the stdio form"
fi
fi
fi

View File

@@ -65,14 +65,14 @@ const PM_EXEC_PARTS = PM_EXEC.split(/\s+/); // ["pnpm", "dlx"] or ["npx"] or ["b
// ECC-recommended MCP servers
// ---------------------------------------------------------------------------
// GitHub bootstrap uses bash for token forwarding — this is intentionally
// shell-based regardless of package manager, since Codex runs on macOS/Linux.
const GH_BOOTSTRAP = `token=$(gh auth token 2>/dev/null || true); if [ -n "$token" ]; then export GITHUB_PERSONAL_ACCESS_TOKEN="$token"; fi; exec ${PM_EXEC} @modelcontextprotocol/server-github`;
/**
* Build a server spec with the detected package manager.
* Returns { fields, toml } where fields is for drift detection and
* toml is the raw text appended to the file.
*
* Codex's [mcp_servers.*] TOML schema is stdio-only (command/args) —
* never emit a `url` key here. The http/url form is valid only for
* Claude Code's .mcp.json (#2224).
*/
function dlxServer(name, pkg, extraFields, extraToml) {
const args = [...PM_EXEC_PARTS.slice(1), pkg];
@@ -87,31 +87,29 @@ function dlxServer(name, pkg, extraFields, extraToml) {
const DEFAULT_MCP_STARTUP_TIMEOUT_SEC = 30;
const DEFAULT_MCP_STARTUP_TIMEOUT_TOML = `startup_timeout_sec = ${DEFAULT_MCP_STARTUP_TIMEOUT_SEC}`;
// Current default connector set (docs/MCP-CONNECTOR-POLICY.md): exactly one
// connector. The former defaults (supabase, playwright, context7, exa,
// github, memory, sequential-thinking) were retired in the June 2026 audit
// and must not be re-emitted; they remain opt-in via
// mcp-configs/mcp-servers.json. Existing user-managed entries are never
// touched by the merge (add-only), except the known-invalid repair below.
const ECC_SERVERS = {
supabase: dlxServer('supabase', '@supabase/mcp-server-supabase@latest', { startup_timeout_sec: 20.0, tool_timeout_sec: 120.0 }, 'startup_timeout_sec = 20.0\ntool_timeout_sec = 120.0'),
playwright: dlxServer('playwright', '@playwright/mcp@latest', { startup_timeout_sec: DEFAULT_MCP_STARTUP_TIMEOUT_SEC }, DEFAULT_MCP_STARTUP_TIMEOUT_TOML),
context7: dlxServer('context7', '@upstash/context7-mcp@latest', { startup_timeout_sec: DEFAULT_MCP_STARTUP_TIMEOUT_SEC }, DEFAULT_MCP_STARTUP_TIMEOUT_TOML),
exa: {
fields: { url: 'https://mcp.exa.ai/mcp' },
toml: `[mcp_servers.exa]\nurl = "https://mcp.exa.ai/mcp"`
},
github: {
fields: { command: 'bash', args: ['-lc', GH_BOOTSTRAP], startup_timeout_sec: DEFAULT_MCP_STARTUP_TIMEOUT_SEC },
toml: `[mcp_servers.github]\ncommand = "bash"\nargs = ["-lc", ${JSON.stringify(GH_BOOTSTRAP)}]\n${DEFAULT_MCP_STARTUP_TIMEOUT_TOML}`
},
memory: dlxServer('memory', '@modelcontextprotocol/server-memory', { startup_timeout_sec: DEFAULT_MCP_STARTUP_TIMEOUT_SEC }, DEFAULT_MCP_STARTUP_TIMEOUT_TOML),
'sequential-thinking': dlxServer('sequential-thinking', '@modelcontextprotocol/server-sequential-thinking', { startup_timeout_sec: DEFAULT_MCP_STARTUP_TIMEOUT_SEC }, DEFAULT_MCP_STARTUP_TIMEOUT_TOML)
'chrome-devtools': dlxServer('chrome-devtools', 'chrome-devtools-mcp@latest', { startup_timeout_sec: DEFAULT_MCP_STARTUP_TIMEOUT_SEC }, DEFAULT_MCP_STARTUP_TIMEOUT_TOML)
};
// Append --features arg for supabase after dlxServer builds the base
ECC_SERVERS.supabase.fields.args.push('--features=account,docs,database,debugging,development,functions,storage,branching');
ECC_SERVERS.supabase.toml = ECC_SERVERS.supabase.toml.replace(/^(args = \[.*)\]$/m, '$1, "--features=account,docs,database,debugging,development,functions,storage,branching"]');
// ECC <= 2.0.0 emitted [mcp_servers.exa] with a `url` key. Codex rejects
// `url` for stdio servers, which makes the *entire* config.toml fail to
// load (#2224). Repair exactly that ECC-emitted form on every merge so
// re-running the installer fixes broken configs instead of preserving
// them. A user-managed stdio exa entry (command/args) is left untouched.
const RETIRED_INVALID_URL_SERVERS = {
exa: 'https://mcp.exa.ai/mcp'
};
// Legacy section names that should be treated as an existing ECC server.
// e.g. older configs shipped [mcp_servers.context7-mcp] instead of [mcp_servers.context7].
const LEGACY_ALIASES = {
context7: ['context7-mcp']
};
// e.g. older configs shipped [mcp_servers.context7-mcp] instead of
// [mcp_servers.context7]. Empty since the June 2026 default-set reduction.
const LEGACY_ALIASES = {};
// ---------------------------------------------------------------------------
// Helpers
@@ -241,6 +239,21 @@ function main() {
const toAppend = [];
const toRemoveLog = [];
// Repair schema-invalid entries emitted by earlier ECC versions (#2224).
for (const [name, invalidUrl] of Object.entries(RETIRED_INVALID_URL_SERVERS)) {
const entry = existing[name];
const isBrokenEccForm =
entry &&
typeof entry.url === 'string' &&
entry.url === invalidUrl &&
typeof entry.command !== 'string';
if (isBrokenEccForm) {
toRemoveLog.push(`mcp_servers.${name} (invalid url entry from earlier ECC versions)`);
raw = removeServerFromText(raw, name, existing);
log(` [repair] mcp_servers.${name} — url is not valid for Codex stdio servers, removing`);
}
}
for (const [name, spec] of Object.entries(ECC_SERVERS)) {
const entry = existing[name];
const aliases = LEGACY_ALIASES[name] || [];
@@ -249,7 +262,9 @@ function main() {
// Prefer canonical entry over legacy alias
const hasCanonical = entry && typeof entry.command === 'string';
const resolvedEntry = hasCanonical ? entry : legacyName ? existing[legacyName] : null;
// For URL-based servers (exa), check for url field instead of command
// Recognize url-form entries as existing so they are never duplicated.
// (Codex itself rejects url-form stdio servers; ECC only ever emits
// command/args, but a user-managed entry must still count as present.)
const urlEntry = !resolvedEntry && entry && typeof entry.url === 'string' ? entry : null;
const finalEntry = resolvedEntry || urlEntry;
const resolvedLabel = hasCanonical ? name : legacyName || name;
@@ -306,11 +321,13 @@ function main() {
if (dryRun) {
if (toRemoveLog.length > 0) {
log('Dry run — would remove and re-add:');
log('Dry run — would remove:');
for (const label of toRemoveLog) log(` [remove] ${label}`);
}
log('Dry run — would append:');
console.log(appendText);
if (toAppend.length > 0) {
log('Dry run — would append:');
console.log(appendText);
}
return;
}
@@ -325,7 +342,7 @@ function main() {
}
if (hasRemovals && toAppend.length === 0) {
log(`Done. Removed ${toRemoveLog.length} disabled server(s).`);
log(`Done. Removed ${toRemoveLog.length} server section(s).`);
return;
}

View File

@@ -28,20 +28,40 @@ const EXCLUDED_PATTERNS = [
const MAX_STDIN = 1024 * 1024; // 1MB limit
let data = '';
let truncated = false;
process.stdin.setEncoding('utf8');
process.stdin.on('data', chunk => {
if (data.length < MAX_STDIN) {
const remaining = MAX_STDIN - data.length;
data += chunk.substring(0, remaining);
if (chunk.length > remaining) truncated = true;
} else {
truncated = true;
}
});
/**
* Echo stdin back (ECC pass-through convention), then exit once the pipe has
* flushed. Truncated stdin is never echoed: a JSON document cut mid-stream is
* reported by the harness as a Stop hook JSON validation failure (#2090).
*/
function passThroughAndExit() {
if (truncated) {
log('[Hook] check-console-log: stdin exceeded 1MB; suppressing pass-through (fail-open)');
process.exit(0);
}
if (!data) {
process.exit(0);
}
process.stdout.write(data, () => process.exit(0));
}
process.stdin.on('end', () => {
try {
if (!isGitRepo()) {
process.stdout.write(data);
process.exit(0);
passThroughAndExit();
return;
}
const files = getGitModifiedFiles(['\\.tsx?$', '\\.jsx?$'])
@@ -65,7 +85,6 @@ process.stdin.on('end', () => {
log(`[Hook] check-console-log error: ${err.message}`);
}
// Always output the original data
process.stdout.write(data);
process.exit(0);
// Always output the original data (unless truncated)
passThroughAndExit();
});

View File

@@ -128,12 +128,22 @@ function sumUsageFromTranscript(transcriptPath) {
return { inputTokens, outputTokens, cacheWriteTokens, cacheReadTokens, model };
}
const MAX_STDIN = 64 * 1024;
// 1MB, matching the other Stop hooks. The Stop payload carries
// last_assistant_message, which routinely exceeded the old 64KB cap and
// made this hook echo a JSON document cut mid-stream (#2090).
const MAX_STDIN = 1024 * 1024;
let raw = '';
let truncated = false;
process.stdin.setEncoding('utf8');
process.stdin.on('data', chunk => {
if (raw.length < MAX_STDIN) raw += chunk.substring(0, MAX_STDIN - raw.length);
if (raw.length < MAX_STDIN) {
const remaining = MAX_STDIN - raw.length;
raw += chunk.substring(0, remaining);
if (chunk.length > remaining) truncated = true;
} else {
truncated = true;
}
});
process.stdin.on('end', () => {
@@ -201,6 +211,11 @@ process.stdin.on('end', () => {
// Non-blocking — never fail the Stop hook.
}
// Pass stdin through (required by ECC hook convention).
// Pass stdin through (ECC hook convention) — but never echo truncated
// stdin: invalid JSON on stdout is reported as a Stop hook failure (#2090).
if (truncated) {
process.stderr.write('[Hook] cost-tracker: stdin exceeded 1MB; suppressing pass-through (fail-open)\n');
return;
}
process.stdout.write(raw);
});

View File

@@ -236,15 +236,26 @@ module.exports = { run };
if (require.main === module) {
const MAX_STDIN = 1024 * 1024;
let data = '';
let truncated = false;
process.stdin.setEncoding('utf8');
process.stdin.on('data', chunk => {
if (data.length < MAX_STDIN) {
data += chunk.substring(0, MAX_STDIN - data.length);
const remaining = MAX_STDIN - data.length;
data += chunk.substring(0, remaining);
if (chunk.length > remaining) truncated = true;
} else {
truncated = true;
}
});
process.stdin.on('end', () => {
const output = run(data);
// Never echo truncated stdin — invalid JSON on stdout is reported as a
// Stop hook failure (#2090).
if (truncated) {
log('[DesktopNotify] stdin exceeded 1MB; suppressing pass-through (fail-open)');
return;
}
if (output) process.stdout.write(output);
});
}

View File

@@ -592,6 +592,7 @@ function saveState(state) {
let mergedChecked = Array.isArray(state.checked) ? state.checked : [];
let mergedLastActive = typeof state.last_active === 'number' ? state.last_active : 0;
let mergedDenials = getDenialCount(state);
try {
if (fs.existsSync(stateFile)) {
@@ -602,6 +603,7 @@ function saveState(state) {
if (typeof diskState.last_active === 'number') {
mergedLastActive = Math.max(mergedLastActive, diskState.last_active);
}
mergedDenials = Math.max(mergedDenials, getDenialCount(diskState));
}
} catch (_) {
/* ignore malformed or transient disk state */
@@ -609,7 +611,8 @@ function saveState(state) {
const finalState = {
checked: pruneCheckedEntries(mergedChecked),
last_active: Math.max(mergedLastActive, Date.now())
last_active: Math.max(mergedLastActive, Date.now()),
fact_force_denials: mergedDenials
};
// Atomic write: temp file + rename prevents partial reads
@@ -652,6 +655,48 @@ function markChecked(key) {
return true;
}
// --- Fact-force denial dampening (#2142) ---
//
// In long sessions the near-identical four-fact deny blocks accumulate in
// the context window and measurably raise the odds of the model dropping
// into a degenerate repetition loop. Emit the full four-fact block only for
// the first GATEGUARD_FACT_FORCE_FULL_DENIALS denials per session (default
// 3); afterwards emit a condensed single-line denial that carries the
// denial ordinal, so consecutive denials are structurally different and
// never textually identical. True retries of an already-gated target are
// unaffected (they were always allowed). Destructive-Bash and routine-Bash
// gates are unchanged.
const DEFAULT_FULL_DENIALS = 3;
function getFullDenialBudget() {
const raw = Number.parseInt(process.env.GATEGUARD_FACT_FORCE_FULL_DENIALS || '', 10);
if (Number.isInteger(raw) && raw >= 0) {
return raw;
}
return DEFAULT_FULL_DENIALS;
}
function getDenialCount(state) {
const n = Number(state && state.fact_force_denials);
return Number.isFinite(n) && n >= 0 ? Math.floor(n) : 0;
}
/**
* Record a first-touch target AND count the fact-force denial in the same
* state write. Returns the new denial ordinal (1-based) plus whether the
* write persisted.
*/
function markCheckedAndCountDenial(key) {
const state = loadState();
if (!state.checked.includes(key)) {
state.checked.push(key);
}
const denials = getDenialCount(state) + 1;
state.fact_force_denials = denials;
return { ok: saveState(state), denials };
}
function isChecked(key) {
const state = loadState();
const found = state.checked.includes(key);
@@ -792,6 +837,20 @@ function writeGateMsg(filePath) {
].join('\n');
}
/**
* Condensed single-line denial used after the full-block budget is spent
* (#2142). Carries the denial ordinal so consecutive denials differ
* textually, and a one-line recovery hint instead of the multi-line block.
*/
function condensedGateMsg(action, filePath, ordinal) {
const safe = sanitizePath(filePath);
return (
`[Fact-Forcing Gate] (denial #${ordinal} this session) First ${action} of ${safe}: ` +
"briefly state importers/callers, affected API, data schemas if any, and the user's verbatim instruction, then retry. " +
'(ECC_GATEGUARD=off disables this gate.)'
);
}
function destructiveBashMsg() {
return [
'[Fact-Forcing Gate]',
@@ -902,9 +961,14 @@ function run(rawInput) {
}
if (!isChecked(filePath)) {
if (!markChecked(filePath)) {
const { ok, denials } = markCheckedAndCountDenial(filePath);
if (!ok) {
return allowWithStateWarning();
}
if (denials > getFullDenialBudget()) {
const action = toolName === 'Edit' ? 'edit' : 'creation';
return denyResult(condensedGateMsg(action, filePath, denials), { includeRecoveryHint: false });
}
return denyResult(toolName === 'Edit' ? editGateMsg(filePath) : writeGateMsg(filePath));
}
@@ -920,9 +984,13 @@ function run(rawInput) {
for (const edit of edits) {
const filePath = edit.file_path || '';
if (filePath && !isClaudeSettingsPath(filePath) && !isChecked(filePath)) {
if (!markChecked(filePath)) {
const { ok, denials } = markCheckedAndCountDenial(filePath);
if (!ok) {
return allowWithStateWarning();
}
if (denials > getFullDenialBudget()) {
return denyResult(condensedGateMsg('edit', filePath, denials), { includeRecoveryHint: false });
}
return denyResult(editGateMsg(filePath));
}
}

View File

@@ -45,40 +45,52 @@ function writeStderr(stderr) {
process.stderr.write(stderr.endsWith('\n') ? stderr : `${stderr}\n`);
}
function emitHookResult(raw, output) {
/**
* Write stdout fully, then exit. `process.exit()` immediately after
* `process.stdout.write()` drops anything beyond the ~64KB pipe buffer,
* which cut large pass-through payloads mid-JSON and made the harness
* treat the hook as failed (#2222). The write callback fires only after
* the chunk is flushed to the pipe.
*/
function exitWithStdout(text, exitCode) {
if (typeof text !== 'string' || text.length === 0) {
process.exit(exitCode);
}
process.stdout.write(text, () => process.exit(exitCode));
}
function resolveHookResult(raw, output) {
if (typeof output === 'string' || Buffer.isBuffer(output)) {
process.stdout.write(String(output));
return 0;
return { stdout: String(output), exitCode: 0 };
}
if (output && typeof output === 'object') {
writeStderr(output.stderr);
const exitCode = Number.isInteger(output.exitCode) ? output.exitCode : 0;
if (Object.prototype.hasOwnProperty.call(output, 'additionalContext')) {
process.stdout.write(buildPreToolUseAdditionalContext(output.additionalContext));
} else if (Object.prototype.hasOwnProperty.call(output, 'stdout')) {
process.stdout.write(String(output.stdout ?? ''));
} else if (!Number.isInteger(output.exitCode) || output.exitCode === 0) {
process.stdout.write(raw);
return { stdout: buildPreToolUseAdditionalContext(output.additionalContext), exitCode };
}
return Number.isInteger(output.exitCode) ? output.exitCode : 0;
if (Object.prototype.hasOwnProperty.call(output, 'stdout')) {
return { stdout: String(output.stdout ?? ''), exitCode };
}
return { stdout: exitCode === 0 ? raw : '', exitCode };
}
process.stdout.write(raw);
return 0;
return { stdout: raw, exitCode: 0 };
}
function writeLegacySpawnOutput(raw, result) {
function resolveLegacySpawnStdout(raw, result) {
const stdout = typeof result.stdout === 'string' ? result.stdout : '';
if (stdout) {
process.stdout.write(stdout);
return;
return stdout;
}
if (Number.isInteger(result.status) && result.status === 0) {
process.stdout.write(raw);
return raw;
}
return '';
}
function getPluginRoot() {
@@ -92,14 +104,25 @@ async function main() {
const [, , hookId, relScriptPath, profilesCsv] = process.argv;
const { raw, truncated } = await readStdinRaw();
// Oversized payloads: never echo the truncated string — a JSON document
// cut mid-stream is treated by the harness as a hook failure, blocking the
// tool call (#2222). Empty stdout + exit 0 means "no opinion", so
// pass-through paths fail open. The hook itself still runs and receives
// the truncated flag (run() context / ECC_HOOK_INPUT_TRUNCATED), so
// security hooks like config-protection can still choose to block.
const sanitizeEcho = text => (truncated && text === raw ? '' : text);
if (truncated) {
process.stderr.write(`[Hook] stdin exceeded ${MAX_STDIN} bytes for ${hookId || 'unknown'}; suppressing pass-through (fail-open unless the hook blocks)\n`);
}
if (!hookId || !relScriptPath) {
process.stdout.write(raw);
process.exit(0);
exitWithStdout(sanitizeEcho(raw), 0);
return;
}
if (!isHookEnabled(hookId, { profiles: profilesCsv })) {
process.stdout.write(raw);
process.exit(0);
exitWithStdout(sanitizeEcho(raw), 0);
return;
}
const pluginRoot = getPluginRoot();
@@ -109,14 +132,14 @@ async function main() {
// Prevent path traversal outside the plugin root
if (!scriptPath.startsWith(resolvedRoot + path.sep)) {
process.stderr.write(`[Hook] Path traversal rejected for ${hookId}: ${scriptPath}\n`);
process.stdout.write(raw);
process.exit(0);
exitWithStdout(sanitizeEcho(raw), 0);
return;
}
if (!fs.existsSync(scriptPath)) {
process.stderr.write(`[Hook] Script not found for ${hookId}: ${scriptPath}\n`);
process.stdout.write(raw);
process.exit(0);
exitWithStdout(sanitizeEcho(raw), 0);
return;
}
// Prefer direct require() when the hook exports a run(rawInput) function.
@@ -147,12 +170,13 @@ async function main() {
truncated,
maxStdin: MAX_STDIN
});
process.exit(emitHookResult(raw, output));
const result = resolveHookResult(raw, output);
exitWithStdout(sanitizeEcho(result.stdout), result.exitCode);
} catch (runErr) {
process.stderr.write(`[Hook] run() error for ${hookId}: ${runErr.message}\n`);
process.stdout.write(raw);
exitWithStdout(sanitizeEcho(raw), 0);
}
process.exit(0);
return;
}
// Legacy path: spawn a child Node process for hooks without run() export
@@ -171,20 +195,17 @@ async function main() {
timeout: 30000
});
writeLegacySpawnOutput(raw, result);
const legacyStdout = sanitizeEcho(resolveLegacySpawnStdout(raw, result));
if (result.stderr) process.stderr.write(result.stderr);
if (result.error || result.signal || result.status === null) {
const failureDetail = result.error
? result.error.message
: result.signal
? `terminated by signal ${result.signal}`
: 'missing exit status';
const failureDetail = result.error ? result.error.message : result.signal ? `terminated by signal ${result.signal}` : 'missing exit status';
writeStderr(`[Hook] legacy hook execution failed for ${hookId}: ${failureDetail}`);
process.exit(1);
exitWithStdout(legacyStdout, 1);
return;
}
process.exit(Number.isInteger(result.status) ? result.status : 0);
exitWithStdout(legacyStdout, Number.isInteger(result.status) ? result.status : 0);
}
main().catch(err => {

View File

@@ -196,13 +196,30 @@ function run(rawInput) {
if (require.main === module) {
let stdinData = '';
let truncated = false;
process.stdin.setEncoding('utf8');
process.stdin.on('data', chunk => {
if (stdinData.length < MAX_STDIN) stdinData += chunk.substring(0, MAX_STDIN - stdinData.length);
if (stdinData.length < MAX_STDIN) {
const remaining = MAX_STDIN - stdinData.length;
stdinData += chunk.substring(0, remaining);
if (chunk.length > remaining) truncated = true;
} else {
truncated = true;
}
});
process.stdin.on('end', () => {
process.stdout.write(run(stdinData));
process.exit(0);
const output = run(stdinData);
// Never echo truncated stdin (invalid JSON would be reported as a Stop
// hook failure, #2090); flush stdout before exiting so large payloads
// are not cut at the pipe buffer.
if (truncated) {
process.stderr.write('[Hook] stop-format-typecheck: stdin exceeded 1MB; suppressing pass-through (fail-open)\n');
process.exit(0);
}
if (!output) {
process.exit(0);
}
process.stdout.write(output, () => process.exit(0));
});
}

View File

@@ -98,6 +98,13 @@ If GateGuard blocks setup or repair work, start the session with
`ECC_GATEGUARD=off`. For hook-level control, keep using
`ECC_DISABLED_HOOKS` with the GateGuard hook ID.
In long sessions, only the first `GATEGUARD_FACT_FORCE_FULL_DENIALS`
fact-force denials (default 3) emit the full four-fact block; later
denials are condensed to a single line carrying the denial ordinal, so
near-identical blocks cannot accumulate in the context window and
amplify model repetition loops (#2142). Retrying the same file or
command after presenting facts never re-triggers the gate.
### Option B: Full package with config
```bash

View File

@@ -1637,6 +1637,114 @@ function runTests() {
}
})) passed++; else failed++;
// --- Fact-force denial dampening (#2142) ---
console.log('\n Fact-force denial dampening (#2142):');
clearState();
if (test('first denials use the full four-fact block and count toward the budget', () => {
const result = runHook({ tool_name: 'Edit', tool_input: { file_path: '/src/damp-one.js' } });
const output = parseOutput(result.stdout);
assert.strictEqual(output.hookSpecificOutput.permissionDecision, 'deny');
assert.ok(output.hookSpecificOutput.permissionDecisionReason.includes('present these facts'),
'first denial should use the full block');
const state = JSON.parse(fs.readFileSync(stateFile, 'utf8'));
assert.strictEqual(state.fact_force_denials, 1, 'denial counter should persist in session state');
})) passed++; else failed++;
clearState();
if (test('emits a condensed single-line denial once the full-block budget is spent', () => {
writeState({ checked: [], last_active: Date.now(), fact_force_denials: 3 });
const result = runHook({ tool_name: 'Edit', tool_input: { file_path: '/src/damp-two.js' } });
const output = parseOutput(result.stdout);
assert.strictEqual(result.code, 0);
assert.strictEqual(output.hookSpecificOutput.permissionDecision, 'deny', 'still denies first touch');
const reason = output.hookSpecificOutput.permissionDecisionReason;
assert.ok(reason.includes('[Fact-Forcing Gate]'), 'condensed message keeps the gate marker');
assert.ok(reason.includes('denial #4'), 'condensed message carries the denial ordinal');
assert.ok(reason.includes('/src/damp-two.js'), 'condensed message names the target');
assert.ok(!reason.includes('present these facts'), 'no repeated four-fact block');
assert.ok(!reason.includes('\n'), 'condensed message is a single line');
assert.ok(reason.includes('ECC_GATEGUARD=off'), 'condensed message keeps a recovery hint');
})) passed++; else failed++;
clearState();
if (test('consecutive condensed denials are textually different (ordinal advances)', () => {
writeState({ checked: [], last_active: Date.now(), fact_force_denials: 5 });
const first = parseOutput(runHook({ tool_name: 'Write', tool_input: { file_path: '/src/damp-a.js', content: 'x' } }).stdout);
const second = parseOutput(runHook({ tool_name: 'Write', tool_input: { file_path: '/src/damp-b.js', content: 'x' } }).stdout);
const firstReason = first.hookSpecificOutput.permissionDecisionReason;
const secondReason = second.hookSpecificOutput.permissionDecisionReason;
assert.ok(firstReason.includes('denial #6'), `expected ordinal 6, got: ${firstReason}`);
assert.ok(secondReason.includes('denial #7'), `expected ordinal 7, got: ${secondReason}`);
assert.notStrictEqual(firstReason, secondReason, 'successive denials must differ so they cannot compound verbatim');
})) passed++; else failed++;
clearState();
if (test('retry of the same target is still allowed after a condensed denial', () => {
writeState({ checked: [], last_active: Date.now(), fact_force_denials: 9 });
const input = { tool_name: 'Edit', tool_input: { file_path: '/src/damp-retry.js' } };
const denied = parseOutput(runHook(input).stdout);
assert.strictEqual(denied.hookSpecificOutput.permissionDecision, 'deny');
const retryOutput = parseOutput(runHook(input).stdout);
assert.ok(!retryOutput || !retryOutput.hookSpecificOutput, 'retry passes through (no second deny, no re-prompt)');
})) passed++; else failed++;
clearState();
if (test('GATEGUARD_FACT_FORCE_FULL_DENIALS tunes the full-block budget', () => {
// Budget 0: condensed from the very first denial.
const zero = parseOutput(runHook(
{ tool_name: 'Edit', tool_input: { file_path: '/src/damp-zero.js' } },
{ GATEGUARD_FACT_FORCE_FULL_DENIALS: '0' }
).stdout);
assert.ok(zero.hookSpecificOutput.permissionDecisionReason.includes('denial #1'));
assert.ok(!zero.hookSpecificOutput.permissionDecisionReason.includes('present these facts'));
// Large budget: full block well past the default threshold.
clearState();
writeState({ checked: [], last_active: Date.now(), fact_force_denials: 7 });
const big = parseOutput(runHook(
{ tool_name: 'Edit', tool_input: { file_path: '/src/damp-big.js' } },
{ GATEGUARD_FACT_FORCE_FULL_DENIALS: '20' }
).stdout);
assert.ok(big.hookSpecificOutput.permissionDecisionReason.includes('present these facts'),
'budget of 20 keeps the full block at denial 8');
})) passed++; else failed++;
clearState();
if (test('malformed denial counter in state is treated as zero (full block, no crash)', () => {
writeState({ checked: [], last_active: Date.now(), fact_force_denials: 'garbage' });
const result = runHook({ tool_name: 'Edit', tool_input: { file_path: '/src/damp-malformed.js' } });
assert.strictEqual(result.code, 0);
const output = parseOutput(result.stdout);
assert.strictEqual(output.hookSpecificOutput.permissionDecision, 'deny');
assert.ok(output.hookSpecificOutput.permissionDecisionReason.includes('present these facts'),
'malformed counter resets to the full block');
})) passed++; else failed++;
clearState();
if (test('MultiEdit denials are dampened past the budget', () => {
writeState({ checked: [], last_active: Date.now(), fact_force_denials: 4 });
const result = runHook({
tool_name: 'MultiEdit',
tool_input: { edits: [{ file_path: '/src/damp-multi.js', old_string: 'a', new_string: 'b' }] }
});
const output = parseOutput(result.stdout);
assert.strictEqual(output.hookSpecificOutput.permissionDecision, 'deny');
assert.ok(output.hookSpecificOutput.permissionDecisionReason.includes('denial #5'));
assert.ok(!output.hookSpecificOutput.permissionDecisionReason.includes('present these facts'));
})) passed++; else failed++;
clearState();
if (test('destructive Bash gate keeps the full message regardless of denial count', () => {
writeState({ checked: ['__bash_session__'], last_active: Date.now(), fact_force_denials: 50 });
const result = runBashHook({ tool_name: 'Bash', tool_input: { command: 'rm -rf /tmp/damp-target' } });
const output = parseOutput(result.stdout);
assert.strictEqual(output.hookSpecificOutput.permissionDecision, 'deny');
assert.ok(output.hookSpecificOutput.permissionDecisionReason.includes('rollback'),
'destructive gate is exempt from dampening');
})) passed++; else failed++;
// Cleanup only the temp directory created by this test file.
try {
if (fs.existsSync(stateDir)) {

View File

@@ -5285,17 +5285,15 @@ async function runTests() {
console.log('\nRound 59: check-console-log.js (stdin exceeding 1MB — truncation):');
if (
await asyncTest('truncates stdin at 1MB limit and still passes through data', async () => {
// Send 1.2MB of data — exceeds the 1MB MAX_STDIN limit
await asyncTest('suppresses pass-through for oversized stdin (fail-open, #2090)', async () => {
// Send 1.2MB of data — exceeds the 1MB MAX_STDIN limit. Echoing the
// truncated string would emit a JSON document cut mid-stream, which the
// harness reports as a Stop hook JSON validation failure.
const payload = 'x'.repeat(1024 * 1024 + 200000);
const result = await runScript(path.join(scriptsDir, 'check-console-log.js'), payload);
assert.strictEqual(result.code, 0, 'Should exit 0 even with oversized stdin');
// Output should be truncated — significantly less than input
assert.ok(result.stdout.length < payload.length, `stdout (${result.stdout.length}) should be shorter than input (${payload.length})`);
// Output should be approximately 1MB (last accepted chunk may push slightly over)
assert.ok(result.stdout.length <= 1024 * 1024 + 65536, `stdout (${result.stdout.length}) should be near 1MB, not unbounded`);
assert.ok(result.stdout.length > 0, 'Should still pass through truncated data');
assert.strictEqual(result.stdout, '', 'Truncated stdin must not be echoed (empty stdout = no opinion)');
})
)
passed++;

View File

@@ -0,0 +1,154 @@
/**
* Regression tests for #2222: run-with-flags.js must fail open on >1MB stdin.
*
* Before the fix, every fallthrough path echoed the truncated payload to
* stdout. The harness parses hook stdout as JSON, got a document cut
* mid-stream, and treated the hook as failed — blocking every Edit/Write
* whose hook payload exceeded the 1MB cap.
*/
'use strict';
const assert = require('assert');
const path = require('path');
const { spawnSync } = require('child_process');
const repoRoot = path.join(__dirname, '..', '..');
const runner = path.join(repoRoot, 'scripts', 'hooks', 'run-with-flags.js');
const MAX_STDIN = 1024 * 1024;
function test(name, fn) {
try {
fn();
console.log(`${name}`);
return true;
} catch (error) {
console.log(`${name}`);
console.log(` Error: ${error.message}`);
return false;
}
}
function runRunner(args, input, env = {}) {
return spawnSync('node', [runner, ...args], {
input,
encoding: 'utf8',
cwd: repoRoot,
env: { ...process.env, ...env },
timeout: 30000,
maxBuffer: 16 * 1024 * 1024,
stdio: ['pipe', 'pipe', 'pipe']
});
}
function oversizedPayload() {
// JSON document that exceeds MAX_STDIN so the runner's stdin cap trips.
return JSON.stringify({
tool_name: 'Write',
tool_input: { file_path: '/tmp/big.md', content: 'x'.repeat(MAX_STDIN + 64 * 1024) }
});
}
console.log('\nrun-with-flags truncation (fail-open) tests:');
let passed = 0;
let failed = 0;
if (
test('oversized payload exits 0 with empty stdout for an enabled hook', () => {
const result = runRunner(['pre:write:doc-file-warning', 'scripts/hooks/doc-file-warning.js', 'standard,strict'], oversizedPayload());
assert.strictEqual(result.status, 0, `expected exit 0, got ${result.status}: ${result.stderr}`);
assert.strictEqual(result.stdout, '', `stdout must be empty, got: ${result.stdout.slice(0, 120)}...`);
assert.match(result.stderr, /stdin exceeded \d+ bytes for pre:write:doc-file-warning/);
assert.match(result.stderr, /fail-open/);
})
)
passed++;
else failed++;
if (
test('oversized payload never echoes truncated stdin when hook args are missing', () => {
const result = runRunner([], oversizedPayload());
assert.strictEqual(result.status, 0);
assert.strictEqual(result.stdout, '', 'missing-args path must not echo truncated stdin');
})
)
passed++;
else failed++;
if (
test('oversized payload never echoes truncated stdin for a disabled hook', () => {
const result = runRunner(['pre:write:doc-file-warning', 'scripts/hooks/doc-file-warning.js', 'standard,strict'], oversizedPayload(), { ECC_DISABLED_HOOKS: 'pre:write:doc-file-warning' });
assert.strictEqual(result.status, 0);
assert.strictEqual(result.stdout, '', 'disabled-hook path must not echo truncated stdin');
})
)
passed++;
else failed++;
if (
test('normal-sized payload still passes through unchanged', () => {
const payload = JSON.stringify({
tool_name: 'Write',
tool_input: { file_path: '/tmp/small.js', content: 'const x = 1;\n' }
});
const result = runRunner(['pre:write:doc-file-warning', 'scripts/hooks/doc-file-warning.js', 'standard,strict'], payload);
assert.strictEqual(result.status, 0, `expected exit 0, got ${result.status}: ${result.stderr}`);
assert.ok(result.stdout.length > 0, 'normal payloads keep the pass-through behavior');
JSON.parse(result.stdout); // stdout must remain valid JSON
})
)
passed++;
else failed++;
if (
test('a security hook can still block on an oversized payload (no blanket skip)', () => {
// config-protection refuses to fail open on truncated payloads. The
// runner must still execute the hook and forward its verdict — only the
// runner's own raw-echo is suppressed.
const payload = JSON.stringify({
tool_name: 'Write',
tool_input: { file_path: '.eslintrc.js', content: 'x'.repeat(MAX_STDIN + 2048) }
});
const result = runRunner(['pre:config-protection', 'scripts/hooks/config-protection.js', 'standard,strict'], payload);
assert.strictEqual(result.status, 2, `expected block exit 2, got ${result.status}: ${result.stderr}`);
assert.strictEqual(result.stdout, '', 'blocked truncated payload must not echo raw input');
})
)
passed++;
else failed++;
if (
test('payload just under the cap echoes through completely (no 64KB pipe cut)', () => {
// process.exit() right after stdout.write() used to drop everything past
// the ~64KB pipe buffer, cutting the echoed JSON mid-stream.
const content = 'y'.repeat(MAX_STDIN - 1024);
const payload = JSON.stringify({ tool_name: 'Write', tool_input: { file_path: '/tmp/edge.md', content } });
assert.ok(payload.length < MAX_STDIN, 'fixture must stay under the stdin cap');
const result = runRunner([], payload);
assert.strictEqual(result.status, 0);
assert.strictEqual(result.stdout.length, payload.length, 'echo must not be cut at the pipe buffer');
assert.strictEqual(result.stdout, payload, 'sub-cap payloads still echo through fallthrough paths');
})
)
passed++;
else failed++;
if (
test('disabled-hook passthrough of a >64KB payload stays valid JSON', () => {
const payload = JSON.stringify({
tool_name: 'Write',
tool_input: { file_path: '/tmp/medium.md', content: 'z'.repeat(256 * 1024) }
});
const result = runRunner(['pre:write:doc-file-warning', 'scripts/hooks/doc-file-warning.js', 'standard,strict'], payload, { ECC_DISABLED_HOOKS: 'pre:write:doc-file-warning' });
assert.strictEqual(result.status, 0);
assert.strictEqual(result.stdout, payload);
JSON.parse(result.stdout);
})
)
passed++;
else failed++;
console.log(`\n ${passed} passed, ${failed} failed\n`);
process.exit(failed > 0 ? 1 : 0);

View File

@@ -0,0 +1,203 @@
/**
* Regression tests for #2090: "Stop hook error: JSON validation failed".
*
* Stop hooks follow the ECC pass-through convention (echo stdin on stdout).
* The Stop payload carries `last_assistant_message`, which can be large; any
* hook that caps stdin and echoes the capped string emits a JSON document cut
* mid-stream, which the harness reports as a Stop hook JSON validation
* failure. Worst offender: cost-tracker capped stdin at 64KB, so any Stop
* payload with a >64KB final assistant message broke the whole Stop chain.
*
* Contract under test: for every Stop hook, stdout is either empty or valid
* JSON, and the exit code is 0 — for realistic large payloads and for
* oversized (>1MB) payloads, via the production runner and via direct
* invocation.
*/
'use strict';
const assert = require('assert');
const fs = require('fs');
const os = require('os');
const path = require('path');
const { spawnSync } = require('child_process');
const repoRoot = path.join(__dirname, '..', '..');
const runner = path.join(repoRoot, 'scripts', 'hooks', 'run-with-flags.js');
const MAX_STDIN = 1024 * 1024;
const workDir = fs.mkdtempSync(path.join(os.tmpdir(), 'ecc-stop-stdout-')); // non-git cwd
const dataHome = fs.mkdtempSync(path.join(os.tmpdir(), 'ecc-stop-data-'));
function test(name, fn) {
try {
fn();
console.log(`${name}`);
return true;
} catch (error) {
console.log(`${name}`);
console.log(` Error: ${error.message}`);
return false;
}
}
function stopPayload(messageBytes) {
return JSON.stringify({
session_id: `stop-stdout-test-${process.pid}`,
transcript_path: path.join(workDir, 'missing-transcript.jsonl'),
cwd: workDir,
hook_event_name: 'Stop',
stop_hook_active: false,
last_assistant_message: 'm'.repeat(messageBytes)
});
}
function hookEnv() {
const env = {
...process.env,
ECC_HOOK_PROFILE: 'standard',
ECC_AGENT_DATA_HOME: dataHome,
CLAUDE_SESSION_ID: `stop-stdout-test-${process.pid}`
};
delete env.ECC_GATEGUARD;
delete env.ECC_DISABLED_HOOKS;
return env;
}
function runViaRunner(hookId, script, input) {
return spawnSync('node', [runner, hookId, script, 'minimal,standard,strict'], {
input,
encoding: 'utf8',
cwd: workDir,
env: hookEnv(),
timeout: 60000,
maxBuffer: 16 * 1024 * 1024,
stdio: ['pipe', 'pipe', 'pipe']
});
}
function runDirect(script, input) {
return spawnSync('node', [path.join(repoRoot, script)], {
input,
encoding: 'utf8',
cwd: workDir,
env: hookEnv(),
timeout: 60000,
maxBuffer: 16 * 1024 * 1024,
stdio: ['pipe', 'pipe', 'pipe']
});
}
function assertStdoutContract(result, label) {
assert.strictEqual(result.status, 0, `${label}: expected exit 0, got ${result.status}: ${result.stderr}`);
if (result.stdout.length > 0) {
try {
JSON.parse(result.stdout);
} catch (err) {
assert.fail(`${label}: stdout is non-empty but not valid JSON (${err.message}); first 120 chars: ${result.stdout.slice(0, 120)}`);
}
}
}
// All registered Stop hooks (hooks/hooks.json).
const STOP_HOOKS = [
['stop:format-typecheck', 'scripts/hooks/stop-format-typecheck.js'],
['stop:check-console-log', 'scripts/hooks/check-console-log.js'],
['stop:session-end', 'scripts/hooks/session-end.js'],
['stop:evaluate-session', 'scripts/hooks/evaluate-session.js'],
['stop:cost-tracker', 'scripts/hooks/cost-tracker.js']
// stop:desktop-notify is excluded from the valid-payload run because a
// successful run() fires a real OS notification; its truncation path is
// covered separately below (run() bails on JSON.parse before notifying).
];
// Direct-invocation legacy paths that echo stdin.
const ECHOING_STOP_HOOKS = [
'scripts/hooks/stop-format-typecheck.js',
'scripts/hooks/check-console-log.js',
'scripts/hooks/cost-tracker.js',
'scripts/hooks/desktop-notify.js'
];
console.log('\nStop hook stdout contract tests (#2090):');
let passed = 0;
let failed = 0;
// A 100KB last_assistant_message is a realistic long-session Stop payload.
// Before the fix, cost-tracker echoed it cut at 64KB through the production
// runner path, making the harness report "JSON validation failed".
const realisticPayload = stopPayload(100 * 1024);
for (const [hookId, script] of STOP_HOOKS) {
if (
test(`${hookId} via runner keeps stdout valid for a 100KB Stop payload`, () => {
const result = runViaRunner(hookId, script, realisticPayload);
assertStdoutContract(result, hookId);
if (result.stdout.length > 0) {
assert.strictEqual(result.stdout, realisticPayload, `${hookId}: pass-through must echo the payload uncut`);
}
})
)
passed++;
else failed++;
}
const oversizedPayload = stopPayload(MAX_STDIN + 64 * 1024);
for (const [hookId, script] of [...STOP_HOOKS, ['stop:desktop-notify', 'scripts/hooks/desktop-notify.js']]) {
if (
test(`${hookId} via runner fails open on a >1MB Stop payload`, () => {
const result = runViaRunner(hookId, script, oversizedPayload);
assert.strictEqual(result.status, 0, `${hookId}: expected exit 0, got ${result.status}: ${result.stderr}`);
assert.strictEqual(result.stdout, '', `${hookId}: oversized payloads must not be echoed`);
})
)
passed++;
else failed++;
}
for (const script of ECHOING_STOP_HOOKS) {
if (
test(`${path.basename(script)} invoked directly never echoes truncated stdin`, () => {
const result = runDirect(script, oversizedPayload);
assert.strictEqual(result.status, 0, `${script}: expected exit 0, got ${result.status}: ${result.stderr}`);
assert.strictEqual(result.stdout, '', `${script}: truncated stdin must not be echoed`);
})
)
passed++;
else failed++;
}
if (
test('check-console-log invoked directly echoes a sub-cap >64KB payload uncut', () => {
const result = runDirect('scripts/hooks/check-console-log.js', realisticPayload);
assert.strictEqual(result.status, 0);
assert.strictEqual(result.stdout, realisticPayload, 'pass-through must not be cut at the pipe buffer');
JSON.parse(result.stdout);
})
)
passed++;
else failed++;
if (
test('cost-tracker invoked directly echoes a sub-cap >64KB payload uncut', () => {
const result = runDirect('scripts/hooks/cost-tracker.js', realisticPayload);
assert.strictEqual(result.status, 0);
assert.strictEqual(result.stdout, realisticPayload, 'the old 64KB cap must not cut realistic Stop payloads');
JSON.parse(result.stdout);
})
)
passed++;
else failed++;
try {
fs.rmSync(workDir, { recursive: true, force: true });
fs.rmSync(dataHome, { recursive: true, force: true });
} catch {
/* best-effort cleanup */
}
console.log(`\n ${passed} passed, ${failed} failed\n`);
process.exit(failed > 0 ? 1 : 0);

View File

@@ -261,7 +261,7 @@ if (
else failed++;
if (
test('merge-mcp-config dry-run appends all recommended servers without mutating target', () => {
test('merge-mcp-config dry-run appends the current default set without mutating target', () => {
const tempDir = createTempDir('mcp-merge-dry-run-');
const configPath = path.join(tempDir, 'config.toml');
const original = '';
@@ -272,9 +272,12 @@ if (
assert.strictEqual(result.status, 0, `${result.stdout}\n${result.stderr}`);
assert.match(result.stdout, /Package manager: npm \(exec: npx\)/);
assert.match(result.stdout, /\[add\] mcp_servers\.supabase/);
assert.match(result.stdout, /\[mcp_servers\.github\]/);
assert.match(result.stdout, /\[add\] mcp_servers\.chrome-devtools/);
assert.match(result.stdout, /\[mcp_servers\.chrome-devtools\]/);
assert.match(result.stdout, /Dry run/);
// Retired defaults (June 2026 connector policy) must not be emitted.
assert.doesNotMatch(result.stdout, /mcp_servers\.(supabase|playwright|context7|exa|github|memory|sequential-thinking)\b/);
assert.doesNotMatch(result.stdout, /url = /);
assert.strictEqual(fs.readFileSync(configPath, 'utf8'), original);
} finally {
cleanup(tempDir);
@@ -296,14 +299,17 @@ if (
const merged = fs.readFileSync(configPath, 'utf8');
const parsed = TOML.parse(merged);
assert.strictEqual(parsed.mcp_servers.exa.url, 'https://mcp.exa.ai/mcp');
assert.strictEqual(parsed.mcp_servers.github.command, 'bash');
assert.deepStrictEqual(parsed.mcp_servers.memory.args, ['@modelcontextprotocol/server-memory']);
assert.strictEqual(parsed.mcp_servers.supabase.tool_timeout_sec, 120);
assert.strictEqual(parsed.mcp_servers['chrome-devtools'].command, 'npx');
assert.deepStrictEqual(parsed.mcp_servers['chrome-devtools'].args, ['chrome-devtools-mcp@latest']);
assert.strictEqual(parsed.mcp_servers['chrome-devtools'].startup_timeout_sec, 30);
// No retired server may be (re-)emitted — exa's url form broke Codex (#2224).
assert.strictEqual(parsed.mcp_servers.exa, undefined);
assert.strictEqual(parsed.mcp_servers.github, undefined);
assert.strictEqual(parsed.mcp_servers.supabase, undefined);
const second = runNode(mergeMcpConfigScript, [configPath], deterministicPackageEnv);
assert.strictEqual(second.status, 0, `${second.stdout}\n${second.stderr}`);
assert.match(second.stdout, /\[ok\] mcp_servers\.github/);
assert.match(second.stdout, /\[ok\] mcp_servers\.chrome-devtools/);
assert.match(second.stdout, /All ECC MCP servers already present/);
assert.strictEqual(fs.readFileSync(configPath, 'utf8'), merged);
} finally {
@@ -315,24 +321,88 @@ if (
else failed++;
if (
test('merge-mcp-config update dry-run reports canonical and legacy section refreshes', () => {
test('merge-mcp-config repairs the invalid exa url entry from earlier ECC versions (#2224)', () => {
const tempDir = createTempDir('mcp-merge-exa-repair-');
const configPath = path.join(tempDir, 'config.toml');
const original = [
'[mcp_servers.github]',
'command = "npx"',
'args = ["-y", "@modelcontextprotocol/server-github"]',
'',
'[mcp_servers.exa]',
'url = "https://mcp.exa.ai/mcp"',
'',
].join('\n');
try {
fs.writeFileSync(configPath, original);
const result = runNode(mergeMcpConfigScript, [configPath], deterministicPackageEnv);
assert.strictEqual(result.status, 0, `${result.stdout}\n${result.stderr}`);
assert.match(result.stdout, /\[repair\] mcp_servers\.exa/);
const updated = fs.readFileSync(configPath, 'utf8');
const parsed = TOML.parse(updated);
assert.strictEqual(parsed.mcp_servers.exa, undefined, 'invalid exa url entry must be removed');
assert.doesNotMatch(updated, /url = "https:\/\/mcp\.exa\.ai\/mcp"/);
// User-managed servers are untouched; current default is added.
assert.strictEqual(parsed.mcp_servers.github.command, 'npx');
assert.strictEqual(parsed.mcp_servers['chrome-devtools'].command, 'npx');
// Re-running must not re-introduce the invalid entry.
const second = runNode(mergeMcpConfigScript, [configPath], deterministicPackageEnv);
assert.strictEqual(second.status, 0, `${second.stdout}\n${second.stderr}`);
assert.doesNotMatch(fs.readFileSync(configPath, 'utf8'), /mcp_servers\.exa/);
} finally {
cleanup(tempDir);
}
})
)
passed++;
else failed++;
if (
test('merge-mcp-config leaves a user-managed stdio exa entry untouched', () => {
const tempDir = createTempDir('mcp-merge-exa-stdio-');
const configPath = path.join(tempDir, 'config.toml');
const original = [
'[mcp_servers.exa]',
'command = "npx"',
'args = ["-y", "mcp-remote", "https://mcp.exa.ai/mcp"]',
'startup_timeout_sec = 30',
'',
].join('\n');
try {
fs.writeFileSync(configPath, original);
const result = runNode(mergeMcpConfigScript, [configPath], deterministicPackageEnv);
assert.strictEqual(result.status, 0, `${result.stdout}\n${result.stderr}`);
assert.doesNotMatch(result.stdout, /\[repair\]/);
const parsed = TOML.parse(fs.readFileSync(configPath, 'utf8'));
assert.strictEqual(parsed.mcp_servers.exa.command, 'npx');
assert.deepStrictEqual(parsed.mcp_servers.exa.args, ['-y', 'mcp-remote', 'https://mcp.exa.ai/mcp']);
} finally {
cleanup(tempDir);
}
})
)
passed++;
else failed++;
if (
test('merge-mcp-config update dry-run refreshes managed sections and leaves user servers alone', () => {
const tempDir = createTempDir('mcp-merge-update-dry-run-');
const configPath = path.join(tempDir, 'config.toml');
const original = [
'[mcp_servers.chrome-devtools]',
'command = "custom"',
'args = ["old"]',
'',
'[mcp_servers.context7]',
'command = "custom"',
'args = ["old"]',
'',
'[mcp_servers.context7-mcp]',
'command = "npx"',
'args = ["legacy"]',
'',
'[mcp_servers.supabase]',
'command = "custom"',
'args = ["old"]',
'',
'[mcp_servers.supabase.env]',
'SUPABASE_ACCESS_TOKEN = "token"',
'args = ["-y", "@upstash/context7-mcp@latest"]',
'',
].join('\n');
@@ -341,11 +411,10 @@ if (
const result = runNode(mergeMcpConfigScript, [configPath, '--update-mcp', '--dry-run'], deterministicPackageEnv);
assert.strictEqual(result.status, 0, `${result.stdout}\n${result.stderr}`);
assert.match(result.stdout, /\[remove\] mcp_servers\.context7/);
assert.match(result.stdout, /\[remove\] mcp_servers\.context7-mcp/);
assert.match(result.stdout, /\[remove\] mcp_servers\.supabase/);
assert.match(result.stdout, /\[mcp_servers\.supabase\]/);
assert.match(result.stdout, /\[mcp_servers\.context7\]/);
assert.match(result.stdout, /\[remove\] mcp_servers\.chrome-devtools/);
assert.match(result.stdout, /\[mcp_servers\.chrome-devtools\]/);
// Retired servers are no longer ECC-managed: never removed or re-added.
assert.doesNotMatch(result.stdout, /\[remove\] mcp_servers\.context7/);
assert.strictEqual(fs.readFileSync(configPath, 'utf8'), original);
} finally {
cleanup(tempDir);
@@ -356,38 +425,31 @@ if (
else failed++;
if (
test('merge-mcp-config removes disabled legacy servers without appending replacements', () => {
test('merge-mcp-config removes disabled servers without appending replacements', () => {
const tempDir = createTempDir('mcp-merge-disabled-');
const configPath = path.join(tempDir, 'config.toml');
const original = [
'[mcp_servers.context7-mcp]',
'[mcp_servers.chrome-devtools]',
'command = "npx"',
'args = ["legacy"]',
'',
'[mcp_servers.exa]',
'url = "https://mcp.exa.ai/mcp"',
'args = ["chrome-devtools-mcp@latest"]',
'',
].join('\n');
const allServersDisabled = 'supabase,playwright,context7,exa,github,memory,sequential-thinking';
try {
fs.writeFileSync(configPath, original);
const result = runNode(mergeMcpConfigScript, [configPath], {
...deterministicPackageEnv,
ECC_DISABLED_MCPS: allServersDisabled,
ECC_DISABLED_MCPS: 'chrome-devtools',
});
assert.strictEqual(result.status, 0, `${result.stdout}\n${result.stderr}`);
assert.match(result.stdout, /Disabled via ECC_DISABLED_MCPS/);
assert.match(result.stdout, /\[skip\] mcp_servers\.context7 \(disabled\)/);
assert.match(result.stdout, /\[skip\] mcp_servers\.exa \(disabled\)/);
assert.match(result.stdout, /\[update\] mcp_servers\.context7-mcp \(disabled\)/);
assert.match(result.stdout, /\[update\] mcp_servers\.exa \(disabled\)/);
assert.match(result.stdout, /Done\. Removed 2 disabled server\(s\)\./);
assert.match(result.stdout, /\[skip\] mcp_servers\.chrome-devtools \(disabled\)/);
assert.match(result.stdout, /\[update\] mcp_servers\.chrome-devtools \(disabled\)/);
assert.match(result.stdout, /Done\. Removed 1 server section\(s\)\./);
const updated = fs.readFileSync(configPath, 'utf8');
assert.doesNotMatch(updated, /context7-mcp/);
assert.doesNotMatch(updated, /mcp_servers\.exa/);
assert.doesNotMatch(updated, /chrome-devtools/);
} finally {
cleanup(tempDir);
}
@@ -454,7 +516,10 @@ if (
assert.strictEqual(parsedConfig.agents.explorer.config_file, 'agents/explorer.toml');
assert.strictEqual(parsedConfig.agents.reviewer.config_file, 'agents/reviewer.toml');
assert.strictEqual(parsedConfig.agents.docs_researcher.config_file, 'agents/docs-researcher.toml');
assert.ok(parsedConfig.mcp_servers.exa);
// Current default connector is added; retired servers are not emitted,
// and pre-existing user-managed entries are preserved untouched.
assert.ok(parsedConfig.mcp_servers['chrome-devtools']);
assert.strictEqual(parsedConfig.mcp_servers.exa, undefined);
assert.ok(parsedConfig.mcp_servers.github);
assert.ok(parsedConfig.mcp_servers.memory);
assert.ok(parsedConfig.mcp_servers['sequential-thinking']);