The test failed deterministically with error_max_turns at 9 turns on main
and this branch alike (CI attempt logs + local main repro). Root cause from
the failing transcript: the Spec Review Loop content is carved out of
office-hours/SKILL.md into office-hours/sections/, so the agent needs
discovery hops (grep SKILL.md -> ls sections/ -> read the section) before it
can write — 8 tool turns + the closing text turn = 9 > the 8-turn budget,
which predates the carve. Observed failures wrote a CORRECT summary on tool
turn 8 and died on the closing turn.
maxTurns 8 -> 12. Verified: PASS locally post-fix (7 turns this run — the
extra headroom absorbs discovery-path nondeterminism).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Semantic reconciliation with the parallel time-attack wave (#2264):
- careful: adopt main's anchored full-command whitelist (stricter — also
catches comment-hiding), re-apply this wave's two hardenings on top
(capital -[rR] in the flag cluster; exclude `(` and backtick from safe
targets so $()/backtick substitution cannot ride the whitelist). Union
of both waves' test batteries passes (main's test.each incl. comment
case + this wave's substitution/capital-R/FP-pin cases).
- one-way-doors: main landed the singular noun unification (a2a447a1);
keep this wave's superset (plural s? + --summary-stdin runtime wiring).
- gbrain-local-status: union of states — main's engine-locked (#2194,
exit 124 PGLite lock) + this wave's thin-client (#2051). --is-ok keeps
main's intent (engine-locked = STOP) and this wave's (thin-client =
usable). Test harness unions both fake behaviors.
- sync-gbrain/setup-gbrain tmpls: both Step 1.5 branches kept; generated
SKILL.md resolved via bun run gen:skill-docs (never hand-edited).
- VERSION/package.json -> 1.61.0.0 per bin/gstack-next-version (main took
1.60.1.0; PR #2470 claims 1.60.2.0). CHANGELOG: wave entry renumbered
1.61.0.0 on top of main's 1.60.1.0; careful/#2024 bullets updated to
describe the delta vs current main. TODOS: union.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The v1.57.7.0 parity suite caps investigate's generated size at 1.09x
baseline; the #2024 question-tuning prose (duplicated into every tier->=2
skill) tipped it to 1.092. Compressed to a single inline command + short
pointer (the full rationale lives in bin/gstack-question-preference's
header and the one-way-doors module docs). Ship goldens re-blessed against
the final resolver text (conscious template-change acknowledgment, per the
golden-file regression contract).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
urlBlocklistFilter compared URLs against the exfiltration blocklist with
case-sensitive substring checks, so an uppercased sink (https://WEBHOOK.SITE/x)
bypassed the guard and reached the scoped browser agent. Normalize the page URL
and extracted content URLs to lowercase before comparing, and make URL
extraction scheme-insensitive so HTTPS:// links are still caught.
Fixes#2190
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Parses package.json overrides + every resolved basic-ftp specifier in bun.lock
(including nested paths like get-uri/basic-ftp) and fails if any is below 5.3.1.
Deterministic and offline. Fires on the pre-fix tree (basic-ftp@5.2.0) and would
also catch a direct-dependency-only bump that leaves a nested vulnerable copy.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
basic-ftp reaches the tree only transitively:
puppeteer-core > @puppeteer/browsers > proxy-agent > pac-proxy-agent > get-uri > basic-ftp
Versions <= 5.3.0 carry four HIGH advisories, all fixed in 5.3.1:
- GHSA-chqc-8p9q-pq6q (CVE-2026-39983) FTP command injection via CRLF
- GHSA-6v7q-wjvx-w8wg incomplete CRLF protection (USER/PASS + MKD bypass)
- GHSA-rpmf-866q-6p89 DoS via unbounded multiline control-response buffering
- GHSA-rp42-5vxx-qpwr DoS via unbounded memory in Client.list()
Pin via a bun `overrides` entry rather than a phantom direct dependency.
Overriding forces every basic-ftp in the tree to 5.3.1, including get-uri's
nested copy; `bun audit` then reports zero basic-ftp advisories (total 37 -> 33,
HIGH 13 -> 9). A direct-dependency bump leaves get-uri/basic-ftp at the
vulnerable version and audit still flags all four.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
endpoint-hash returns "local" for stdio/PGLite, but validators only
allowed hex suffixes, so setup-gbrain could not persist trust policy.
Co-authored-by: Cursor <cursoragent@cursor.com>
Exercise resultFromGeminiStream against current stream-json fixtures
(including empty-success hardening). Recognize GEMINI_API_KEY and map
IneligibleTierError to auth — personal OAuth free-tier is no longer
supported by gemini CLI.
Co-authored-by: Cursor <cursoragent@cursor.com>
GeminiAdapter was reading message.text and result.usage, so current CLI
content/stats events produced empty $0 success rows. Accept content with
an assistant role guard, stats token fallbacks, init model, and treat
empty exit-0 output as an error (#2159).
Co-authored-by: Cursor <cursoragent@cursor.com>
Root cause of months of silent local failure: the sandbox copied skill dirs to
the repo root, but claude >= 2.x resolves slash commands strictly from
registered skills, so /autoplan short-circuited with 'Unknown command' (0
turns, ~1s) on every attempt. Install /autoplan + review skills at
project-level .claude/skills/ (same pattern as skill-routing-e2e).
Also: the transcript filter matched entry.type === 'tool_use', a shape that
never appears at the top level of raw stream-json, so assertions only ever saw
the final result text; filter on assistant/user events instead. Hang
protection accepts the Phase 1 review dispatch (Agent/Task tool call carrying
review instructions) as progress evidence, since full Phase 1 completion is
15+ min of subagent work. Budget raised to 10 min / 40 turns.
Invisible in CI: the file is in neither evals.yml nor evals-periodic.yml
matrices (coverage decision filed in TODOS.md).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
proc.kill() only signals the sh -c wrapper; the claude child survives as an
orphan that inherited our stdout/stderr pipes, blocking the stream drain until
it exits (observed: a 600s spawn timeout stretching to 1431s and tripping bun's
per-test timeout with no result). On timeout, cancel the stdout reader; race
the stderr drain against child exit + 5s grace. Streamed transcript lines
survive the cancel, so callers still get their evidence.
Regression test: test/session-runner-timeout.test.ts (fake claude spawns a
pipe-holding orphan; fails in 30s without the fix, passes in 8s with it).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A thin client (remote-HTTP MCP brain, no local engine by design) probed
`gbrain sources list`, which gbrain's dispatch guard REFUSES on thin clients
(exit 1, no recognized error string), so the classifier fell to its
defensive broken-config default and every suppression gate silently hid
brain-aware blocks from exactly the users on a shared team brain.
New 'thin-client' state, detected PRE-probe from gbrain's own remote_mcp
config marker via the existing gbrainConfigPath() helper (mirrors gbrain's
isThinClient(); honors GBRAIN_HOME; zero network, immune to error-string
drift), with a /thin[- ]client/ stderr backstop in the probe catch. Remote
reachability is deliberately NOT probed by the classifier — that is the
#1964 pathology; gbrain calls degrade gracefully at use time, and the detect
JSON says so honestly (gbrain_thin_client: {probed: false}).
The state is admitted at every suppression gate — gstack-gbrain-detect
--is-ok (drives setup + gbrain-refresh), gen-skill-docs' detection override,
gstack-config gbrain-refresh — while the sync stages (code/memory/dream)
SKIP with an accurate reason: code indexing runs on the brain server, memory
syncs via the remote brain's artifacts pull. The two consumer classes need
opposite answers, which is why this is a distinct state and not a
skip-the-probe special case. sync-gbrain Step 1.5 and setup-gbrain prose
route thin-client to proceed, never into broken-config remediation.
detectMcpMode secondary generalization: url-match against the config's
remote_mcp.mcp_url (deterministic — gbrain mounts at the generic /mcp path)
-> name pattern gbrain[-_]* -> stdio command token; gbrain_mcp_mode stays a
3-value enum.
Tripwires: end-to-end --is-ok exits 0 on a thin-client fixture AND still
exits 1 on broken-config (the gate didn't widen); pre-probe + stderr-fallback
classifier paths; 4 detectMcpMode identification cases incl. a non-matching
url that must NOT false-positive.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
design variants --count abc silently generated ZERO variants and exited 0:
parseInt(NaN) flowed through Math.min into the generation loop bound. The
same NaN class was live on the two sibling flags in the same file:
--retry abc made generate() a silent no-op (attempt <= NaN never true, null
output, exit 0) and --timeout abc killed the serve board ~immediately
(setTimeout(NaN)).
New design/src/flag-utils.ts: parseIntFlag (pure, unit-testable) +
normalizeIntFlag (CLI wrapper). Contract matches the --viewports precedent
(error loudly on nonsense — these commands spend real image-API money, a
silent fixup hides typos from calling agents): undefined -> default; bare
flag/empty/non-integer ("3.7" rejected, not truncated)/below-min -> exit 1
with usage hint; above-max -> clamp with stderr warning. --count normalizes
at the variants() consumption site so programmatic callers are covered, with
the ceiling derived from STYLE_VARIATIONS.length instead of a magic 7; the
CLI passes the raw flag through (a pre-parseInt would truncate "3.7").
Tripwires live in test/design-flag-utils.test.ts — deliberately under test/,
not design/test/, which is invisible to the bun test glob, TEST_ROOTS, and
every workflow (wiring design/test/ into CI is a captured TODO).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Library fix: revoke/reset/rotate now share ONE noun alternation (api key,
token, secret, credential, access key, password) with optional plural s?.
Pre-fix leaks: "reset my secret", "reset my access key", "revoke my secret"
(mismatched per-verb lists) and every plural form ("rotate the credentials",
"revoke all tokens" — \b(...)\b cannot match a trailing s).
Runtime wiring — the regexes could never fire in production before:
- gstack-question-preference --check gains --summary-stdin: the question
text pipes via stdin (never argv — summaries carry quotes/newlines/shell
metacharacters) and feeds isOneWayDoor alongside the id, so an ad-hoc
destructive question with a stored never-ask preference now forces
ASK_NORMALLY. Empty/absent stdin keeps exact id-only semantics.
- question-preference-hook falls back to classifyQuestion(question text)
when the registry lookup misses, so unregistered destructive questions
pass through to a human instead of auto-deciding.
- question-tuning resolver prose shows the piped form (SKILL.md regen lands
in the wave's release commit).
Tripwires (verified fail-first): full verbs x nouns x singular/plural matrix
with the #2024 repro rows, benign-summary no-over-match rows, stdin
transport survival (quotes/newlines), empty-stdin fail-safe, and hook
fallback both directions (destructive -> pass-through, benign -> deny).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Every AskUserQuestion died with "Tool result missing due to internal error"
on current Claude Code builds (Desktop 1.14271.0, CC 2.1.177). Root cause:
the question-preference-hook emitted permissionDecision:'defer' on every
pass-through path. 'defer' is a real PreToolUse value, but since CC v2.1.89
its semantics are "pause this tool call for external resumption" (headless
resume) — never "abstain". Interactive sessions have nothing to resume the
paused call, so the tool orphaned. Pre-2.1.89 builds ignored the unknown
value, which is why the hook worked when it shipped and broke later.
The fix is the two-branch pass-through contract:
- no context -> exit 0 with EXACTLY empty stdout
- memory nuggets present -> hookSpecificOutput with hookEventName +
additionalContext ONLY (the documented shape; plan-tune Layer 8 memory
injection ships through this branch and keeps working)
defer() is renamed passThrough() so the function says what it does, and
docs/spikes/claude-code-hook-mutation.md's protocol contract (cited by the
hook header) is corrected in the same commit — it taught '"defer" — let
permission flow continue' and was the reintroduction vector.
Test contract rewritten in the same commit (13 assertions across 3 files,
verified fail-first against the unfixed hook): pass-through paths assert
exact-empty stdout (a garbage/partial write cannot slip past an
optional-chained parse), the nugget path asserts permissionDecision is
ABSENT while additionalContext survives, and a new tripwire asserts no
non-deny path ever puts the string "permissionDecision" on stdout. The
deny (auto-decide) and Conductor prose-redirect paths are unchanged.
Deployment: no migration needed — settings.json points at the absolute
bash shim which execs the .ts live; /gstack-upgrade delivers the fix.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Every /office-hours run appends a mode:"resources" bookkeeping row alongside
the real session row, so --read double-counted sessions (~2x): tiers promoted
early and the builder-to-founder nudge armed prematurely. The file already
filtered resources rows for LAST_*/CROSS_PROJECT; the same realSessions
filter now feeds SESSION_COUNT/TIER, and the nudge predicate is the faithful
allowlist (mode === 'builder') so a future mode #4 fails closed instead of
re-opening this bug.
8 regression tests: count vs resources noise, tier boundaries both sides,
nudge false-with-noise / true-at-3-builders, cross-project trailing row.
Absorbed from PR #1991 by @mvann (fix + tests commits; the PR's version-bump
commit is superseded by this wave's consolidated release commit).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Absorbing #2031 un-blocked a destructive remove that bypassed the #1734
data-loss guards: ensureSourceRegistered's drift path issued
`gbrain sources remove` directly, without the detectAutopilot +
decideSourceRemove checks every other remove routes through via
safeSourcesRemove. gbrain >= 0.42's own prompt was accidentally blocking
that path; with --confirm-destructive passed it is live again.
- Drift remove now refuses LOUDLY (throws, actionable message) while an
autopilot is active or when decideSourceRemove disallows; a silent
changed=false would hide the drifted registration.
- decideSourceRemove's extraArgs (--keep-storage when supported) propagate
to the remove call, matching safeSourcesRemove.
- Drift is realpath-normalized before being declared: a symlink alias of the
same directory (macOS /tmp -> /private/tmp) is a match, not drift — the
probable cause of #1985's reporter hitting the remove on an unmoved repo.
- Drift fires a loud stderr line (old -> new path); perpetual drift in logs
is the trigger for promoting #1985's reindex-in-place design.
Tests: autopilot-active refusal (no remove in call log), fail-closed refusal
on unreadable sources list, --keep-storage propagation, symlink-alias
no-drift; existing drift tests pin the guard probes so a live autopilot on
the dev machine can't flip them.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ensureSourceRegistered() handles match-but-different-path by removing the
old source then re-adding it at the new path. The remove was issued as
`gbrain sources remove <id> --yes`, but gbrain >= 0.42 gates `sources
remove` behind `--confirm-destructive` (`--yes` alone no longer suppresses
the data-loss prompt). The remove therefore fails with "To proceed, pass
--confirm-destructive", which ensureSourceRegistered surfaces as "source
registration failed" — aborting the entire /sync-gbrain code stage for any
already-registered source whose path has drifted. The memory and brain-sync
stages still pass, so the code index silently stops refreshing.
The orchestrator's own safeSourcesRemove() already passes
--confirm-destructive; this brings the lib helper in line with that
convention. Keeps --yes for older gbrain.
Tests: extend the fake gbrain shim in gbrain-sources.test.ts to simulate
the gbrain >= 0.42 guard (remove without --confirm-destructive exits 1),
update the drift re-register assertion, and add a regression test that
proves the drift path no longer throws. Both fail on main with the exact
"To proceed, pass --confirm-destructive" error and pass with the fix.
Fixes#1985
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
All worktrees of a repo share one origin-derived slug, so they share one
`~/.gstack/projects/<slug>/checkpoints/` dir. `/context-restore` loaded the
newest checkpoint across the whole dir, so in one worktree it could silently
restore a *sibling worktree's* newer checkpoint.
Step 1 now orders candidates current-branch-first (read from each file's
`branch:` frontmatter), keeping other branches as a fallback. A branch is
checked out in at most one worktree, so this stops cross-worktree contamination
while preserving Conductor cross-branch handoff: when the current branch has no
checkpoint of its own, the full newest-first set is still used.
- scan the 200 newest before partitioning so a current-branch checkpoint sitting
below a burst of sibling saves is still found; output still capped at 20
- non-git / detached HEAD / branchless legacy saves fall back to the old
newest-first behavior (back-compat)
- +5 regression tests in context-save-hardening.test.ts (the #2052 bug case
fails on the old pipeline); regenerated SKILL.md + proactive-suggestions.json
Fixes#2052
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Two residual fail-opens in the same guard PR #2040 hardened, both verified
by executing the script pre-fix:
- rm -rf $(./wipe-all)/node_modules silently allowed: the substitution token
ends in a whitelisted suffix and the safe-exception early exit skipped ALL
downstream checks. $( and backtick now count as chain separators; plain
$VAR expansion stays allowed.
- rm -R / silently allowed: both greps required a lowercase r in the flag
cluster; capital -R is the documented BSD/macOS recursive flag. Both greps
now match -[a-zA-Z]*[rR].
Six new tests: substitution x2 -> ask, capital-R x2 -> ask, rm -Rf
node_modules single-command -> still allowed, escaped-newline branch
(existing code, previously untested), and a pinned deliberate FP
(cd app && rm -rf node_modules -> ask) documenting the fail-closed
direction on chains.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The safe-exception block whitelisted rm -rf of build artifacts by
extracting targets with a single greedy match (.*rm ...), which only ever
inspects the LAST rm in the command. A chain like 'rm -rf /; rm -rf
node_modules' was therefore judged solely by its trailing safe target and
allowed without warning, waving through the destructive 'rm -rf /'.
Gate the shortcut to single rm invocations: when any shell separator
(; | & newline, incl. JSON-escaped \n/\r from the grep extraction path)
is present, fall through to the destructive-pattern check, which warns on
any recursive rm. Single-command artifact cleanups still allow.
Adds 3 regression tests covering semicolon and && chains in both orders.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* feat: first-run activation — project-aware scaffold, router front door, onboarding nudges
Adds the activation system that drives a new install toward a concrete first move:
- bin/gstack-first-task-detect: local-git+filesystem repo classifier emitting one
validated enum bucket (greenfield/code_<lang>/branch_ahead/dirty_default/clean_default),
portable timeouts, fail-safe empty output.
- generate-first-run-guidance.ts: unified preamble section — first-run project-aware
scaffold + returning-session plan->review->ship tip, gated on a persistent .activated
marker and never run in headless. Detection wired lazily in generate-preamble-bash.ts.
- SKILL.md.tmpl: top-level gstack skill is now a pure router (browse body removed; it
lives in /browse), routing any request and sending browser/QA work to /browse.
- setup: first-move nudge on first install. office-hours: closing handoff that launches
the next review via the Skill tool.
- telemetry-ingest: accept onboarding/first_task_scaffold_shown/handoff/route event types.
* test: cover first-run detection + repoint browse-content assertions to /browse
- New unit tests for every detection bucket, the eval-safe enum contract, and the
first-run gating (test/preamble-first-task-scaffold.test.ts); periodic E2E that runs
the detector through the real harness (test/skill-e2e-first-task-scaffold.test.ts).
- Repoint browse-content assertions (gen-skill-docs, audit-compliance, skill-validation,
LLM-judge eval) from the root skill to browse/SKILL.md following the router split;
add a regression pinning that the router carries no browse body.
- Register first-task-scaffold touchfiles + periodic tier; bump parity/carve size caps
~1-2KB per skill for the shared first-run-guidance preamble section.
- Refresh ship golden fixtures for the preamble addition.
* chore: regenerate SKILL.md + llms.txt for first-run activation
* chore: bump version and changelog (v1.58.5.0)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(test): repoint bws skillmd-* setup-block assertions to browse/SKILL.md
The skillmd-setup-discovery / -no-local-binary / -outside-git E2E tests extracted
the `## SETUP`→`## IMPORTANT` browse binary-discovery block from the root SKILL.md.
P2 moved that block to browse/SKILL.md (end anchor is now `## Core QA Patterns`),
so the slice came back empty and the `browse/dist/browse` guard failed. Repoint to
browse/SKILL.md. Verified: 7/7 e2e-browse pass locally.
* fix(test): tolerate skill-discovery race in PTY plan-mode smoke
The e2e-pty-plan-smoke suite (office-hours / plan-mode-no-op) failed in CI with
`Unknown command: /office-hours` (claude exited ~10s) while passing locally. Root
cause: a cold CI container's overlay-FS scan of the symlinked ~/.claude/skills
registry finishes AFTER the runner's 8s boot grace, so the first `/skill` send
reaches claude before the skill is indexed and is rejected as unknown. The runner
gave up on the first "Unknown command:" line.
runPlanSkillObservation now re-sends the skill command up to 3x (6s apart),
re-marking the buffer each time so stale scrollback can't re-trip the check,
before concluding the skill is genuinely unregistered. A real dangling-symlink /
missing-skill still surfaces as 'exited' (after retries), preserving the original
diagnostic. Pure-helper contract unchanged: 95/95 unit tests pass.
This is a pre-existing harness bug (fails identically on #2077's own branch, which
introduced the suite) surfaced while shipping the activation feature.
* debug(ci): temporarily instrument pty-smoke skill discovery
Capture claude version, env, registry tree, and a claude -p discovery probe to
pin why /office-hours isn't discovered in CI (retries proved it's not a race).
Temporary — revert once the registry fix is identified.
* chore: revert pty-smoke harness experiments (race-retry + CI debug step)
Diagnosis is conclusive and the experiments aren't the fix, so restore the
harness to its original state (net-zero diff vs main for both files).
What the CI debug step proved: `claude -p` returns READY — claude v2.1.187 fully
DISCOVERS /office-hours from the symlinked registry. Only the interactive PTY TUI
rejects it as "Unknown command" (and it received the full command text). So the
e2e-pty-plan-smoke failure is a claude 2.1.187 interactive-TUI regression (skills
discovered by `claude -p` aren't exposed as TUI slash commands), pre-existing in
the #2077 harness and failing identically on its own origin branch — unrelated to
this activation PR. The race-retry can't help (the TUI genuinely lacks the
command); the debug step also tripped actionlint (shellcheck SC2012). Both reverted.
* fix(ci): copy SKILL.md as real files in pty-smoke registry (cross-mount symlink)
The e2e-pty-plan-smoke suite failed with "Unknown command: /office-hours" in CI
while passing locally. Root cause (proven, not guessed): claude 2.1.187's
interactive-TUI skill scanner does not follow the /github/home -> /__w cross-mount
symlink the registry used for per-skill SKILL.md. Evidence: a CI debug step showed
`claude -p` discovered the skill (printed READY), and a local macOS repro with the
identical symlinked registry recognized /office-hours — isolating the failure to
the container's cross-mount symlink, not registration content, claude version,
duplicate names, or a race.
Fix: register the per-skill SKILL.md + sections as REAL copies (same mount as
$HOME) so the TUI reads them directly. The gstack root stays a symlink — the
preamble's runtime bash resolves bin/* and sections/* through it and bash follows
cross-mount symlinks fine.
* fix(ci): guard rm expansion in pty-smoke registry (shellcheck SC2115)
* fix(ci): also register pty-smoke skills project-scoped (cwd/.claude/skills)
The real-file user-dir registration still left the TUI rejecting /office-hours in
the container. claude's interactive TUI surfaces /slash commands from the PROJECT
dir (<cwd>/.claude/skills); the smokes run with cwd=$REPO whose .claude/skills is
gitignored (absent on a fresh CI checkout), so the user-dir registry feeds
`claude -p` (READY) but not the TUI. Populate $REPO/.claude/skills with real
SKILL.md + sections copies (no gstack symlink there — it would point at its own
parent; runtime paths use the user-dir gstack symlink).
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>