Postgres audit_ledger append-only guard gains exactly one
execution entry: cloud/ledger_pg_guard.apply_pg_guard, runnable
as 'python3 -m cloud.ledger_pg_guard' (explicit ops command,
not a migration script). It executes PG_GUARD_SQL verbatim from
the constant -- no second copy of the SQL anywhere -- refuses
non-PgConnection targets, does not commit itself (caller/CLI
commits), and refuses with exit 2 on a non-postgres backend so
a no-PG environment can never claim hardening. ensure_schema
still skips PG triggers; POSTGRES_SCHEMA still builds only the
table. Tests lock all of this with a recording fake connection
(no PG execution is faked), a source scan asserting only
ledger.py and ledger_pg_guard.py reference the constant, and
CLI dry-run/refusal cases. Real-PG syntax and UPDATE/DELETE
blocking verification is explicitly left to B5, not claimed here.
(cherry picked from commit b1f6c9158d628186965a9e57576ff8c9500e3f73)
- cloud/attempt_hook.py (new): canonical policy -- one counted
dispatch = one row, is_defect always False from the worker;
human/first rounds and human breakpoint resumes count;
platform auto-resume reruns, coordinator fan-out, and
pre-execution gate failures do not; transient retries inside
one dispatch are not new attempts. Platform origin survives
via the task_attempt_origin_markers table (same-transaction
write on requeue, queued_at generation guard on consume).
Defects are explicit-recorder only; corrections are
append-only (record_correction, last-wins).
- cloud/worker.py: Worker(attempt_ledger_hook=False) + CLI
--attempt-ledger-hook (default OFF = gap-3 behaviour exactly);
marker write in auto_resume_interrupted, marker consume +
classify in run_one, one ledger write at each terminal point
(cancel branch, normal terminal block); all hook writes
best-effort, never fail the task or block a requeue.
- cloud/attempt_ledger.py: corrects_attempt_no column (new DDL
supersedes gap 3's pre-merge DDL) + record_correction +
correction-aware aggregation; read path uses SELECT * so
gap-3-era tables still read; cost code untouched.
- cloud/tests/test_attempt_hook.py: 32 tests (policy, markers,
corrections, worker integration, mixed endpoint).
- docs/arch-conformance-metrics.md: policy, switch, PG manual
steps (new PG_DDL + PG_MARKER_DDL), remaining user decisions.
- cloud/audit_scorecard.py: pure stdlib scorer, structured evidence in,
7 dimension scores (0-10, 1 decimal), basis, missing/untested items,
overall pass only when all 7 >= 9; unknown -> None, never 0/10/estimated;
fixture/viewport/code-review evidence -> untested, never pass;
thresholds all test_default_unapproved, user_approved only on explicit input.
- server.py: GET /audit-scorecard read-only, same auth/member scope as
/metrics, no DB writes, no ledger writes, no pushback/reaudit triggers;
on main base it honestly reports unknown/not-enforced, overall not_pass.
- docs/audit-scorecard.md: spec, formulas, threshold table, unknown
handling, overall rule, 10-to-7 merge mapping, relations to
#238 metrics-report, #244 sampling, #260/#261 loop, and a system-computed
example (current state, overall not_pass) clearly separated from the
previous judgement estimates.
- tests: 12 new items pin all-pass, one-below-nine fails, average 9.1
with one 4 still fails, unknown None, fixture untested, conditional
not a pass, thresholds unapproved, endpoint 401/200 read-only.
- suites: cloud 1442 OK (skipped 4), top-level 105 OK, deploy 39 OK.
- cloud/attempt_ledger.py: separate task_attempts table (not tasks
columns) with per-attempt rows, MAX+1 attempt_no, append-only
intent; interrupted rows kept but never counted; is_defect is
explicit, never inferred from failure; first defect category
wins; no-ledger tasks stay unknown (None), never backfilled.
SQLite DDL is CREATE TABLE IF NOT EXISTS (idempotent); PG_DDL
is the verbatim manual step for production Postgres, kept out
of POSTGRES_SCHEMA on purpose (migrations coverage untouched).
- cloud/server.py GET /metrics-report: aggregates the ledger
into compute_metrics records; missing ledger table degrades to
unknown rates, not an error. Cost dual-column code untouched.
- cloud/metrics.py: docstring only (ledger is now the source);
compute_metrics logic and all #238 semantics unchanged.
- Tests: 16 ledger tests (store/aggregate/metrics/PG adapter
evidence) + 3 endpoint tests (real rates, old task beside
ledger task, interrupted status non-terminal).
- cloud/audit_sampling.py (pure, stdlib): mandatory sampling (1.0)
for rebuild cases and for third-failure near-complete cases whose
continuation round still failed; random sampling for the rest
(normal 0.10, critical-path 0.50, ceil so small groups are never
rounded to zero, seed required and recorded for reproducibility).
- Wrong-verdict handling: correct the original conclusion and
retrigger the corresponding flow (wrong pushback ->
cancel_pushback_and_rerun_audit; wrong rebuild ->
halt_rebuild_and_restore; wrong pass -> reopen_audit_and_pushback;
unknown original -> escalate_to_human); every result, correct or
corrected, is appended to the audit-of-audit record.
- Golden-set approval checklist: list reviewed, criteria defined,
sample exclusion, approver+timestamp -- all human-confirmed before
approval; sample entries (sample=True or sample- ids) are dropped
and counted, never counted as golden.
- metrics.build_report gains an optional sampling_plan section;
without a plan it states sampling is pending, never implying the
audit was re-examined.
- cloud/arch_conformance.py: contract-version (+1 only, approved
change record), forbidden-directory (own dir only, .. and symlink
escapes resolved), forbidden-import layer bans audited against the
baseline (foundation/execution/driver, server sqlite3 Row adapters
deliberately allowed), G2 frozen-stack swap guard; skill-project
one-call check.
- cloud/metrics.py: first-pass/defect/rework rates over terminal
tasks, unknown rates as None (never 0), #212 dual-column per-task
cost (total None when incomplete), pure feedback rules
(tighten/route-with-extra-audit/recalibrate, auto_apply False),
golden-set gate: unapproved sample set is never decision-ready.
- GET /metrics-report (authenticated, member-scoped, same as
/metrics): attempts/defects are None until an attempt ledger
exists, so rates stay unknown rather than fabricated.
- Tests: 29 arch + 15 metrics + 3 endpoint, each check with
positive and negative cases; repo-level scan pins zero layer
violations on the baseline so a future violation fails CI via the
existing host-verify discover run (no workflow change).
- cloud/merge_gate_hard.py (new): pure hard gate; mode resolution is
env-only (unset/invalid -> hard, fail-closed); five checks plus
branch protection must be protected; unknown/unprotected block
even with explicit confirm; no-evidence blocks (fail-closed);
directory check reuses #209 check_directory_isolation (v0.3 rule);
blocks codes + merge_gate_blocked audit detail are the track-3
pushback interface (no pushback state machine in this track).
- cloud/server.py: POST /tasks/{id}/merge uses hard mode by default;
record/enforce/off only when explicitly set via env (preserving
#209 semantics); body merge_gate_mode is ignored server-side so
callers cannot downgrade the gate; every gate block writes a
merge_gate_blocked audit before returning 409, status unchanged;
hard-mode body type errors return 400.
- docs/merge-gate-branch-protection.md (new): protection payload
(PR + strict status checks + no force-push + no deletion +
enforce_admins), empty required_checks = unconfigured, Pro/public
prerequisites, 403 causes; states protection is NOT claimed enabled.
- SKILL.md (gate-mechanism wording only): four checks -> five checks;
body + coordinator + client appendix gate paragraphs updated to
default hard, merge_gate_blocked audit, payload doc reference.
- tests: 31 new hard-gate tests (pure + endpoint + skill text);
#209 endpoint tests now set record env explicitly (their intent);
test_server_merge 200-path calls now carry full hard evidence.
- search(..., allowed_hosts=[...]) extends (never replaces) the 15-domain
code list for that call only; scope=general + allowed_hosts raises,
empty/illegal values raise before any HTTP, dot-boundary matching,
extension values never in error strings or attempted entries.
- Native-filter parity: Tavily/Exa get the effective list, Perplexity
skips its native filter past its 20-domain cap (post-filter stays
authoritative), Brave/SearXNG/DuckDuckGo rely on post-filtering.
- MCP web_search gains allowed_hosts passthrough (only when supplied,
so older search_fn fakes keep working).
- JS-heavy evaluation documented in docs/web-search-mcp.md, mock-first:
direct fetch is shell-only by construction; provider extract can
supply rendered text in mock only; live SearXNG in this VM env
failed (remote closed connection) and paid-backend live effects are
unvalidated blockers, not claimed.
- Tests: test_code_search_ext (9) + test_js_heavy_extract (5 + 1 live
skipped); existing websearch/code-search suites still green.
(cherry picked from commit 9c26bbe848438e1f34bcb000700aeb4c284f4f23)
- click/click_ref: pre-click allowlist gate on resolvable anchor href
(same check as navigate; miss refuses before the click executes);
click/click_ref/click_at: post-click landing URL check.
click_at has no pre-click gate by design (coordinates name no
element); JS-driven navigation, evaluate, meta refresh and popups
are documented as unintercepable with the Tinyproxy 403 backstop.
- Tenant script upgrade is now safe: only proven-unmodified scripts
(manifest match, 2a569ac known-shipped SHA-256, missing, or
current) auto-merge; tenant-modified scripts are never overwritten,
are reported as skipped, and get one deduped audit record. The
manifest never learns a tenant hash (else the next upgrade would
mistake a modified file for untouched). Idempotent reruns.
- Activation candidate = deployed Tinyproxy programming set encoded
with leading-dot entries (plain entries would regress
docs.python.org); npmjs.org per the deployed filter, not npmjs.com.
Host activation itself is NOT performed this round: only the plan,
validation tests and rollback are delivered.
Tests: 28 new (click 13, upgrade 8, activation 7), all fake/no-network;
98 browser-related tests pass including prior suites.
(cherry picked from commit e4a93f5748ec815f163d0bc096ff4dc4b8c651f5)
- Multi-tab: browser_new_page / browser_list_pages /
browser_switch_page / browser_close_page in playwright_mcp.py;
each new page gets a fresh Playwright context, so cookies and
storage are isolated between pages. Single-page tools act on
the current page; switching to a missing index is an error,
not a crash; closing the last page is an error (use
browser_close).
- Navigation allowlist: BROWSER_ALLOWED_HOSTS (comma list,
leading-dot suffix match, case/port-insensitive) checked in
_check_allowed_url before launching Chromium; unset (or empty)
means no check, the old behaviour. file:// always allowed;
localhost/127.0.0.1 have no special treatment.
- Close cleanup: browser_close closes all pages and best-effort
removes cwd browser-live.png / browser-live.json; custom
screenshot files are untouched. list_pages needs no launch.
- Egress filter: 10 programming-source Tinyproxy BASIC rules
(python.org, nodejs.org, go.dev, pkg.go.dev, rust-lang.org,
developer.mozilla.org, crates.io, stackoverflow.com,
cve.mitre.org, nvd.nist.gov); already-present github.com /
pypi.org / npmjs.org not duplicated; searx.diante.me stays
exact-only, no diante.me wildcard.
- Allowlist worker wiring: _docker_task_context now passes a
set, non-empty BROWSER_ALLOWED_HOSTS from the worker env into
[mcp_servers.playwright.env] in the tenant config, so the MCP
process actually sees it (container -e alone does not reach
MCP subprocesses, 2026-10-30). Unset/empty writes nothing and
never overwrites; the value never goes into logs; it is not
added to the websearch env block or the container env.
ensure_playwright_mcp_env now returns False without rewriting
when the result would be identical (canonical join: one blank
line before the block), so a second prep leaves an unchanged
tenant config alone; other sections untouched.
- Skill + docs: browser-automation SKILL.md multi-tab/allowlist
section; docs/platform-browser.md comparison doc (new file).
- Tests (mock/fake only, no network, no real Chromium, no real
credentials): cloud.tests.test_playwright +
cloud.tests.test_websearch_worker, 48 tests OK, including 6
new wiring tests (switch off passes no variable, switch on
reaches MCP env verbatim, empty never written, old-tenant
merge idempotent + no-rewrite, ensure no-op when identical,
allowlist enforces only after wiring).
- NOT done (see PR body): no persistent profile, no credential
vault, no approval card, no CAPTCHA bypass, in-page link
navigation does not pass the allowlist, no real-Chromium live
verification, host tinyproxy filter not reloaded.
- search(..., scope=code) restricts to 15 programming domains
(official docs, GitHub, registries, Stack Overflow, CVE/NVD):
native include_domains/search_domain_filter where supported
(Tavily, Exa, Perplexity), post-filtering for all providers
(Brave, SearXNG, DuckDuckGo have no native filter).
- web_fetch now uses fetch_best: Tavily extract, then Exa
contents, then direct fetch; both-fail errors name both
failures, direct-fetch 403 under the egress whitelist is
fail-closed, not bypassed. Default general scope and direct
fetch_url behaviour unchanged.
- MCP web_search gains scope enum (general/code); docs updated.
- Tests all mock HTTP, no real keys.
- cloud/tree.py: structured worktree tree (dirs first, ignore
.git/node_modules, symlinks not followed, entry/depth
truncation flags, text render for injection)
- GET /tasks/{id}/tree with /files auth + worktree resolution,
max_depth 1..5, max_entries 1..500, escape 400, missing 404,
cloud/cross-host 409
- MCP get_task_tree translating to the new endpoint
- worker first-round injection of a repo-checkout top-level
snapshot (2 layers, 120 entries) after repo resolution,
labelled as checkout snapshot not worktree; skipped for
coordinator/resume/fork, silent when no host source
- docs/project-tree.md; tests for tree, endpoint, injection,
MCP translation
GET /tasks/{id}/files previously returned 409 for all docker tasks
on the grounds that tenant docker shares /app/work per project.
Production inspection shows the worker creates a per-task
host-worktrees/<task-id> subdirectory under the tenant work dir
(62 such dirs under the wwww tenant), so per-task reads are
attributable after all: the endpoint now resolves tenant docker
tasks via tenants/<project>/work/host-worktrees/<task-id> (local
worktree as fallback), never serves the shared /app/work mount
itself, and still 409s cloud/cross-host tasks. Docs and the
harness2_tasks boundary notes are updated to match.
- Role models: run_improvement_via_tasks gains role_models
(probe/editor/selector/reflector) plus --model-<role> CLI flags;
missing/empty falls back to shared --model, both empty means
server default, so default behavior is unchanged.
- Sweep: run_sweep + examples/harness2_sweep.py manifest CLI with
shared library_root (library restore), per-run failure isolation
and sweep-report.json summary; preflight gates task creation.
- Deliverable assets: GET /tasks/{id}/files for local-executor
tasks (safe path resolution, UTF-8 text <=256KB, listing <=200;
docker/cloud/cross-host 409 with explicit reason, since tenant
Docker shares one /app/work per project and per-task attribution
would misattribute); probe rollout deliverable_files from the
endpoint plus DELIVERABLE FILE reply blocks (endpoint wins on
collision, bad blocks dropped), surfaced in
deliverables/<label>/files/ context and full_result summary.
- Docs: harness2.md comparison table updated for all three items.
- select_final trivial condition now k==1 and single-candidate pool,
regardless of whether a selector is provided (previously gated on
selector is None, so wired runs always paid for a useless selector
task at k=1)
- Budget gains max_sessions gate (probe + stage-attempt sessions;
fmt2 corrections and selector/reflector sessions exempt), the
backstop for unpriced models where the USD gate never binds
- validate_run_tag (charset, no leading '-', no s<N> seed prefix)
enforced at run_improvement_via_tasks and the CLI
- CLI --check preflight (base harness, source dir, prompt, tag,
control-plane /health probe) without creating tasks
- ModeResult.to_dict now includes rollout summaries so a lost probe
is visible in full_result instead of only on the server
- CLI plan counts the selector only when k>1
Port Google Research's Harness^2 method layer (model weights frozen,
only the surrounding harness is optimized): Propose-Probe-Compose with
INV/DOM/AGG editors, parallel/sequential modes, per-domain experience
library, anonymous-product selection, k<=3 hard cap and budget gate.
Execution goes only through the existing control-plane API (upload ->
task with idempotency key -> poll -> trace/cost -> cancel on timeout);
no new server endpoints, no codex flags composed, tasks inherit the
normal executor/sandbox/quota/audit path.
Wiring lessons from four real rounds against production (project
wwww, ledger task): HttpTaskClient retries transient disconnects and
502/503/429 (3 attempts); editors get a worked file-block example, an
explicit <no-change> marker and one feedback retry (.fmt2) instead of
silently accepting notes-only replies; run_task unwraps the server's
result_text JSON envelope (text field holds the real reply) — without
this, line-anchored file-block parsing could never see blocks the
agents were actually emitting. Final round (real4) fully green:
all stages landed, selection non-fallback, experience入库, probe
delivers the correct signed total 85.15.
Tests: 35 harness tests (17 method + 18 wiring incl. fake-control-plane
full round, idempotent replay, retry, format retry, envelope round).
Deliberate deviations from upstream are documented in docs/harness2.md
(no network-unrestricted/sandbox-disabled defaults, auto_apply off,
no benchmark/scorer, probe deliverable = final reply text).
Worker --websearch-mcp (default off) seeds tenant codex-home with
websearch MCP on _tenant_dirs (container path); old tenants merge
on next task. Autoscaler unit gains the flag. Tinyproxy filter
adds Perplexity/Exa/Tavily/Brave/DuckDuckGo + exact
searx.diante.me (no diante.me wildcard, control plane stays out).
Tests: test_websearch_worker 4 + websearch_mcp 12 + tenant 7 = 23 OK.
Not pushed, not merged, not deployed; SearXNG host/DNS/nginx and
tinyproxy reload are host steps.
web_search auto chain Perplexity/Exa/Tavily/Brave/SearXNG/DuckDuckGo
with pinned-provider no-fallback, web_fetch with head+tail truncation,
codex-home seeding helper (idempotent, never writes keys).
Tests: cloud/tests/test_websearch_mcp.py 12/12 (mocked HTTP).
Not wired into worker, not deployed, paid backends not live-tested.
host