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feat(daemon): agent-readable retrieval path for activity-divergence probe (lr-8b476f) - #404

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fix/lr-8b476f-agent-readable-activity-probes
Aug 21, 2026
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feat(daemon): agent-readable retrieval path for activity-divergence probe (lr-8b476f)#404
clagentic-merger[bot] merged 4 commits into
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fix/lr-8b476f-agent-readable-activity-probes

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What

Adds an agent-readable retrieval path for the lr-58c813 server-side activity-divergence probe, closing lr-8b476f: the probe (lib/sdk-bridge.js) was previously reachable ONLY through the process_stats WebSocket message (lib/project-sessions.js:668-709), which requires a live WS client -- unreachable by a read-only crew agent holding Bash+Read only (MILLER was dispatched twice and could not read it; the operator was then asked to open devtools himself).

Shape chosen: (b) an authenticated local endpoint on the existing daemon.sock Unix IPC socket

Adds a new get_activity_diagnostics command to the daemon existing IPC dispatch (lib/daemon.js), alongside get_status, add_project, etc. -- the same channel bin/cli.js already uses for --list/--shutdown/--restart.

Why (b) over (a) (a JSON file under ~/.clagentic/ on the reaper tick) and (c) (a periodic log line):

  • (b) needed ZERO new auth code. The sockets parent directory (CONFIG_DIR, containing daemon.sock) is already created chmod 0700 by ensureConfigDir() (lib/config.js) -- only the daemons own OS user can connect at all. A new file under ~/.clagentic/ would need the same permission discipline invented and verified from scratch; the socket already has it as an existing, audited property of the transport.
  • (b) needed ZERO new rate-limiting/bounding logic. The response is built on-demand from the existing counter plus 20-entry ring buffer (lr-58c813 own bound) at read time -- no polling, no periodic write, no risk of flooding a log file the way PEACHES already blocked once in this exact PR lineage (lr-58c813 console.warn nit).
  • (a) would have worked too, but adds a second on-disk artifact under ~/.clagentic/ that has to be independently gated/rotated/cleaned, when the daemon already owns a request/response channel with the right properties.
  • (c) was rejected outright per the task briefs own reasoning: a log line needs its own rate-limiting/delta-only design to avoid the flood risk already flagged once.

What I gave up: (b) requires the daemon to be reachable via its socket file, which means a Bash-only agent needs the CLI binary (or equivalent socket-speaking client) rather than being able to cat a plain file. Traded for zero new auth/rate-limit surface, which given lr-2016fe adjacent finding (a sibling handler ungated) felt like the safer default: a stricter, already-audited gate for the new surface rather than inventing a new one.

The exact command a Bash-only agent runs

clagentic-console --activity-diagnostics

Prints JSON to stdout with fields activeLiveCount, activityDivergenceCount, activityDivergenceRecentSamples.

Documented in docs/guides/architecture.md under a new Agent-readable diagnostics over IPC subsection.

Auth posture of the new path (explicit, per dispatch brief)

Read-only, mutates nothing. Gated by filesystem permissions on CONFIG_DIR (chmod 0700), the SAME gate every other IPC command on daemon.sock already relies on -- no new auth surface introduced, and nothing copied from process_stats WS gap (lr-2016fe, deliberately NOT touched here): this is a different transport with its own, stricter, already-existing OS-level gate rather than an unaudited role check. lr-2016fe remains open and unresolved by this PR, as scoped.

Samples carry no session-identifying field -- reads the exact same BOBBIE-remediated shape (ts, rawIsProcessing, derivedIsActive, hasQueryInstance) that lib/sdk-bridge.js _recordActivityDivergenceIfAny already produces for process_stats. No identifying context was judged necessary or added back.

What was explicitly NOT done (scope conflict, reported per dispatch brief)

The CLIENT-side ledger (window.__clagenticActivityLedger accessor, lib/public/modules/activity-latch.js) is fundamentally out of reach for any server-side/file/IPC retrieval path: it is a plain in-memory object living in one browser tabs JS heap, reset on page load, with no persistence and no channel back to the server. There is no shape (file, IPC, log line) that could expose it without the browser itself pushing it somewhere -- that would be a new feature (e.g. periodically reporting the ledger to the server), not a retrieval-path fix, and was out of scope per the dispatch briefs instruction not to change what the probes measure or how they sample. Flagging this explicitly rather than silently leaving it unaddressed: closing the client-ledger gap, if wanted, needs a follow-up task with its own design (e.g. the client periodically reporting the ledger over the existing WS channel), not bundled here.

Scope discipline

  • Does NOT fix the activity-indicator bug (lr-5edd64).
  • Does NOT change what the probes measure or how they sample -- only how the server-side one is retrieved.
  • Does NOT fix the process_stats auth gap (lr-2016fe) -- left open, explicitly not copied into the new path either.
  • Does NOT rename any _clay-prefixed identifier (lr-6feac0).
  • lib/session-activity.js untouched.
  • No broadcast/hot-path cost reintroduced: the new IPC response is built on-demand from the existing counter/ring-buffer at read time, riding no new timer.

Tests

1469/1469 pass (npm test), new tests individually confirmed present and passing in raw TAP output (not inferred from exit code alone -- this repos harness was fail-open until 863f359).

test/activity-diagnostics-retrieval-lr-8b476f.test.js: 5 new tests.

  • Test 1 constructs a genuine divergence via a real idle-reaper tick and asserts buildActivityDiagnosticsResponse() reflects it exactly -- demonstrated failing on pre-fix code by git-stashing this PRs lib/ changes and re-running: fails with TypeError (buildActivityDiagnosticsResponse is not a function, since the function does not exist pre-fix), not merely asserted to fail.
  • Test 2 confirms no sessionId leaks through the new retrieval path either.
  • Tests 3-5 source-check that daemon.js IPC case and the CLI subcommand call the shared, tested buildActivityDiagnosticsResponse() rather than a hand-duplicated inline copy that could drift from it.

Two pre-existing, environment-timing-sensitive failures were observed across repeated runs in this sandbox and are NOT introduced by this diff: test/daemon-bootstrap-guard.test.js EX_CONFIG subprocess-spawn test, and separately lr-e33776 unauthed-asset test -- both are subprocess-spawn-based tests that timed out (5000ms) on different runs of the SAME unmodified pre-fix checkout (confirmed via git stash), never together, and neither touches any file in this diffs blast radius (bin/cli.js, lib/daemon.js, lib/sdk-bridge.js, lib/cli/ipc-subcommands.js, docs/guides/architecture.md). Final pre-push run: 1469/1469 pass, 0 failures.

TASK: lr-8b476f

… probe (lr-8b476f)

Adds a get_activity_diagnostics command on the existing daemon.sock Unix
IPC socket, reading the same shared module-level counter the WS-only
process_stats handler already folds into its response
(lib/sdk-bridge.js's getActivityDivergenceStats). No new auth surface:
gated by the same filesystem permissions (chmod 0700 CONFIG_DIR) every
other IPC command already relies on, and does not copy process_stats's
missing role gate (lr-2016fe).

buildActivityDiagnosticsResponse() is factored into lib/sdk-bridge.js
(not inlined in daemon.js, which has no module.exports and cannot be
required in-process without binding real sockets) so the response shape
is directly unit-testable.
Prints the activity-divergence probe totals as JSON to stdout via
lib/cli/ipc-subcommands.js's handleActivityDiagnostics, mirroring
handleList's existing IPC-subcommand pattern.

This is the exact command a Bash-only crew agent runs:

  clagentic-console --activity-diagnostics

No devtools, no browser, no WS client, no interactive session required.
…e data (lr-8b476f)

Regression tests for the get_activity_diagnostics IPC command / --activity-diagnostics
CLI subcommand. Test 1 constructs a genuine divergence via a real
idle-reaper tick and asserts buildActivityDiagnosticsResponse() reflects
it exactly (not a stubbed/hardcoded shape) -- stash-verified to fail on
pre-fix code (TypeError: not a function, since the response builder did
not exist), not merely asserted to fail. Test 2 confirms no sessionId
leaks through this second retrieval path, matching process_stats's
BOBBIE-remediated shape. Tests 3-5 confirm the daemon.js IPC case and
CLI wiring call the shared, tested function rather than a hand-duplicated
inline copy.
…IPC path (lr-8b476f)

Adds a subsection under 'CLI <-> Daemon' naming the exact command a
Bash-only agent runs (clagentic-console --activity-diagnostics), the
response shape, and the auth posture (filesystem-permission-gated via
the existing chmod 0700 CONFIG_DIR, not a new per-command check).
@clagentic-security

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BOBBIE security audit of PR #404 (lr-8b476f), base 308a400..HEAD bd4d968.

Scope: new agent-readable IPC retrieval path (get_activity_diagnostics) for the activity-divergence probe merged in PR #403 (lr-58c813). Files: lib/sdk-bridge.js (buildActivityDiagnosticsResponse), lib/daemon.js (IPC case), lib/cli/ipc-subcommands.js + bin/cli.js (--activity-diagnostics CLI), test/activity-diagnostics-retrieval-lr-8b476f.test.js, docs/guides/architecture.md.

  1. IPC gating verified at RUNTIME, not just claimed: ls -ld on the live daemon config dir shows drwx------ (0700, root-owned) on both ~/.clagentic and ~/.clagentic/console (containing daemon.sock). The socket special file itself shows srwxr-xr-x, but directory traversal into console/ is blocked for any non-owning UID, so the 0700 parent is the actual and sufficient enforcement point -- matches AMoS's claim. The new case sits inline in daemon.js's existing IPC switch alongside add_project/get_status/set_pin, takes zero fields from msg, and performs no path.join/path.resolve/string-concat -- no injection surface added, not privileged differently from siblings.

  2. Data exposure: buildActivityDiagnosticsResponse() returns exactly {ok, activeLiveCount, activityDivergenceCount, activityDivergenceRecentSamples[]}. Each sample is {ts, rawIsProcessing, derivedIsActive, hasQueryInstance} -- no sessionId, no path, no username, no project slug. Confirmed by source read of lib/sdk-bridge.js:138-154 and by the PR's own regression test asserting Object.prototype.hasOwnProperty(...,"sessionId") === false. The PR feat(activity): instrumentation-only baseline for activity-source probes (lr-58c813) #403 session-id remediation is not undone by this new path.

  3. Local-process threat model: content is limited to counters/booleans/timestamps (aggregate concurrency count, monotonic divergence count, bounded recent-sample ring). No per-session or per-user identifying signal reachable by any local process via the CLI printout.

  4. Read-only/no state tampering: buildActivityDiagnosticsResponse() calls only getActivityDivergenceStats() and getActiveLiveCount(), both plain reads (one returns a closure int, the other returns .slice() copies of module-level arrays/counters). Neither calls isSessionActive()/ensureRegistry()/session.activity=... -- the PR feat(activity): instrumentation-only baseline for activity-source probes (lr-58c813) #403 transitive-mutation class is not reintroduced.

  5. lib/session-activity.js: zero diff. lib/project-sessions.js (registry incl. Object.create(null) hardening, process_stats, _peekIsSessionActive): zero diff. Ring buffer cap and counter logic in _recordActivityDivergenceIfAny: zero diff, pre-existing and already capped/monotonic.

  6. Scanners: gitleaks detect (4 commits scanned) -- no leaks. trufflehog git (base..head) -- 0 verified/unverified secrets. semgrep --config=auto across the 4 touched code files -- 6 hits, all verified via git diff -U0 to fall in PRE-EXISTING code outside this PR's new hunks (path-traversal warnings on pre-existing path.join calls, format-string INFO hits on pre-existing console.log lines) -- correctly excluded, none blocking. osv-scanner against package-lock.json -- 80 pre-existing vulnerabilities, but package.json/package-lock.json show zero diff in this PR (git diff --stat empty) -- baseline exposure from main, not attributable to this PR, out of scope.

lr-c4da07: no reference found in this repo's LORE or in the PR diff/commits -- orthogonal by absence of any connection.

Zero findings. No rule in RULEBOOK.md is triggered by this diff.

scanners_run: gitleaks (ok, 0 findings), trufflehog (ok, 0 findings), semgrep --config=auto (ok, 6 hits all pre-existing/out-of-scope), osv-scanner (ok, 80 pre-existing findings, zero lockfile diff in this PR)

{"reviewer": "bobbie", "review_status": "clean", "head_sha": "bd4d968cbd470c507c41a34db72be95468224172", "pr_number": 404}

@clagentic-reviewer

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PEACHES — clean (0 findings)

  • The PR adds agent-readable IPC retrieval for the lr-8b476f server-side activity-divergence probe, addressing the requirement that instrumentation unreadable by crew agents is a design failure.
  • Read-only verification: buildActivityDiagnosticsResponse() calls only getActivityDivergenceStats() and getActiveLiveCount(), both module-scope read-only accessors. No transitive mutations, no lazy initialization, no registry writes.
  • Auth posture: IPC command sits behind daemon.sock's existing chmod 0700 CONFIG_DIR gate (filesystem-level, OS-only access). Does NOT copy the ungated process_stats WS surface (lr-2016fe). Response carries only ts, rawIsProcessing, derivedIsActive, hasQueryInstance — the BOBBIE-remediated shape, unchanged.
  • Scope: Retrieval path only. No changes to session-activity.js, no probe-mechanics changes, no clay identifier renames, no lr-2016fe or lr-5edd64 fixes.
  • Tests: Behavioral tests (1–2) construct real divergences via bridge.startIdleReaper() and verify count increments exactly, not stubbed shapes. Wiring tests (3–4) source-check daemon.js case and CLI handler. Test 1 stash-verified to fail pre-fix (TypeError: buildActivityDiagnosticsResponse is not a function).
  • Brand: All user-facing strings use clagentic-console (CLI) or @clagentic/console (npm), never bare clagentic.
  • Boundary: Architecture doc correctly identifies this as server-side divergence counter only, does NOT claim to expose the client-side window ledger — limitation honestly stated.
  • No regressions: Only new test file; no existing test modified or assertion loosened.
  • Full suite: 1469/1469 passed.
{"reviewer": "peaches", "review_status": "clean", "head_sha": "bd4d968cbd470c507c41a34db72be95468224172", "pr_number": 404}

@clagentic-merger
clagentic-merger Bot merged commit 197b945 into main Aug 21, 2026
4 checks passed
@clagentic-merger

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Merged via clagentic-loadout v0.2.0

Field Value
Gated HEAD SHA bd4d968cbd470c507c41a34db72be95468224172
Merged SHA bd4d968cbd470c507c41a34db72be95468224172
Reviews clagentic-reviewer[bot], clagentic-security[bot]
CI status no-runner-by-design (0 commit-status entries at HEAD)
task_id lr-8b476f

@clagentic-merger
clagentic-merger Bot deleted the fix/lr-8b476f-agent-readable-activity-probes branch August 21, 2026 21:16
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