Cover the remaining role-carrying events with test_sink assertions:
session.started (ctx-held role), session.resumed and session.ended
(session-held role), turn.interrupted and turn.failed. Correct the
mcp_factory race comment (the loser fires a second plain connected and
overwrites the winner's map entry, not a reconnect) and the role_extras
doc (derived roles fall through to the session-held role).
- Register five new events (26 -> 31): rag.sync.started/completed/failed
and mcp.server.connected/failed, whitelist-gated for agent global hooks
like every non-escalation event
- Bracket every real RAG document sync with rag.sync.* via pre-resolved
RagSyncHooks snapshots carried into the build funnels; cache hits, pure
loads, and attaches fire nothing, and a user abort mid-sync counts as a
failure
- Fire mcp.server.connected only on real spawns in McpFactory::acquire
(reusing a live server is silent), marking respawns of a previously
live key with COYOTE_MCP_RECONNECT; mcp.server.failed carries
COYOTE_ERROR and COYOTE_MCP_AUTH_REQUIRED on auth failures. Boot-time
registry connects deliberately fire nothing
- Carry COYOTE_ROLE on session.* and turn.* events, resolved at fire
time so mid-session role switches and temp roles are reflected
The advisory flock in run_checks.py uses one system-wide lock path
(~/.cache/coyote/review-stack.lock). Concurrent runs of the timeout/deadline
tests contend on it: the losers sleep in the bounded retry loop, the total
deadline (computed before lock acquisition) expires, and commands record
'skipped: deadline' instead of the expected timeout/kill behavior.
- run_checks.py: ADVERSARY_STACK_LOCK_PATH env override relocates the lock
file (isolation seam, documented alongside the other env seams); every
other lock semantic (default path, bounded wait, proceed-unlocked warning,
fd held for process lifetime, skip when no commands) is unchanged.
- run_checks.py: guard the POSIX-only fcntl import — windows-latest CI has
python3 and runs these tests, so the unconditional import crashed the
script there; on non-POSIX the lock is now skipped with a stderr WARN,
matching the script's documented non-POSIX limitations.
- tests: the shared adversary_script_command helper points every spawned
script at its own throwaway lock path, isolating the run_checks tests from
each other and from any real review running on the same machine.
- tests: adversary_run_checks_stack_lock_path_is_env_overridable pins the
override (lock file appears at the overridden path across two sequential
runs; no lock file is created when no commands are declared).
- strip interior NUL bytes from hook env values in fire_resolved so
agent-authored text (e.g. escalation questions) cannot suppress a hook
via a failed spawn; raise the spawn-failure log to warn!
- make Supervisor::has_active_tasks recurse into child supervisors,
mirroring cancel_recursive, so a prompt ctrl-c that cancels only a
grandchild still latches as an interruption
- document the signal-first vs error-first classification asymmetry at
top_level_agent_finished / SpawnResultHooks::fire and the deliberate
REPL teardown cancel; pin ctrlc-with-no-error => agent.interrupted
- probe Scenario J: pty-driven ctrl-c during a live headless --agent run
fires exactly one agent.interrupted with no COYOTE_AGENT_ERROR
Ctrl-C at the reedline prompt no longer latches the abort signal
unconditionally: latch_prompt_interrupt only marks an interruption when
the supervisor had live agents/jobs to cancel (new
Supervisor::has_active_tasks), so the advertised exit path (ctrl-c at an
idle prompt, then ctrl-d) fires agent.completed at teardown instead of
agent.interrupted. Mid-turn ctrl-c still latches directly via
wait_user_interrupt/poll_abort_signal, preserving the
interrupted-then-exit classification.
Also: probe-lane tests for escalation.answered single-fire,
escalation question env truncation, agent.failed inverse gate, and
hooks probe Scenario I (session.started vs session.resumed); comment
notes on escalation.answered semantics and the agent__cancel blind
spot.
- escalation.raised fires in the child ctx after queue submit; escalation.answered
fires in the parent ctx from the taken request, so both agree on origin envs
- escalation.* resolves global hooks ungated: the per-agent global_hooks whitelist
never applies to these root-level events
- session.resumed fires on the use_session resume leg, inverse of session.started
- agent.interrupted replaces agent.completed/failed when the abort signal was
ctrl-c'd: top-level bracket (now abort-aware), spawned-subagent result arm
(agent__cancel / REPL ctrl-c), and graph agent nodes via the session signal;
exit_agent and the shell-exit path stay non-interrupted by passing no signal
- document the deliberate non-fire paths (direct prompts, escalation timeout and
parent-drop, graph approval nodes)
- Thread an explicit InstallMode (Skip/Prompt/Force) through the hook
installers: startup install_builtins() is pinned to Skip and never
prompts (test-pinned on both mocked-TTY and TTY-less paths);
--install-builtins hooks runs Prompt mode across all three hook
locations (global hooks dir, roles/hooks, agents/<name>/hooks) under
one shared keep-all/replace-all sticky scope; force paths keep
unconditional overwrite semantics.
- Hoist the bundle resolve_conflict/StickyMode/ConflictAction prompt
into shared config::conflict with a NonInteractive policy: bundle
installs keep their non-TTY bail, builtin hook refreshes resolve
non-TTY conflicts to keep. Bundle UX preserved byte-for-byte,
pinned by tests.
- Extend .builtin-manifest reconcile to the resolved top-level hooks
dir (shipped set from HookAssets::iter()); malformed-manifest
fail-safe (zero deletions) preserved and test-pinned.
- Sweep removed builtin agents' hooks: agent dirs absent from the
embed with a hooks/.builtin-manifest reconcile against an empty
shipped set; empty hooks dirs are removed, user files and
manifest-less agent dirs are never touched.
- Update usage-probe-hooks.sh Scenario C to the new non-interactive
keep contract and add black-box Scenarios E-G covering role/agent
hook reconcile, top-level manifest fail-safety, and the
removed-agent sweep.
- Skip the builtins bootstrap, function-binary build, and tool-scope
rebuild for inspection-only runs (--info/--list-*/--mcp-list/
--list-secrets without --agent/--role): a pristine COYOTE_CONFIG_DIR
now stays byte-empty (was 269 files written before dispatch)
- Tolerate a model-less default config on the inspection surface via
AppConfig::from_config_lenient + Model::default() in bootstrap;
strict 'No available model' behavior unchanged for the REPL path and
all mutating mcp/vault flags
- --list-secrets degrades to an rc=0 informational message in sandbox
mode (mutating vault flags still fail there), pinned by test
- Add the 041.7-4 regression test: a malformed COYOTE_<NAME>_GLOBAL_TOOLS
env override logs the debug message and leaves global_tools untouched
- Adopt scripts/usage-probe-inspection.sh (10 flags: rc=0 + zero writes,
output required only for --info) and add binary-level
tests/inspection_flags.rs, incl. the agent+--info still-bootstraps pin
Bundles: RemoteLayout.hooks + scan/is_empty/plan routing into hooks_dir,
a functional --filter hooks arm replacing the inert interim arm,
TopCategory::Hooks provenance rows, and per-file 'bundle defines hook
script' summary lines (visibility only, no approval prompt).
Reconciliation: new builtin_manifest module — a hidden per-directory
.builtin-manifest records the files the builtin installer actually owns
(written this run, previously owned, or pending failed deletions);
deletion is strictly manifest-minus-embed so user-created files in the
same directory are never touched. Wired into install_builtin_agents for
agents/<name>/hooks/ and a greenfield minimal Role::install_builtin_role_hooks
for roles/hooks/.
Hardening: bundles are barred from shipping any path component that
aliases .builtin-manifest (Unicode case fold + trailing dot/space,
directories included); manifest entries reuse the bundle store's
is_safe_component rules; malformed manifests fail safe toward keeping
files; role-side reconcile failures degrade to a warning like the
agent side.
Turn bracket (repl::TurnBracket): turn.started on entry and exactly one of
turn.{completed,interrupted,failed} on exit, with the interrupted-vs-failed
discrimination (abort_signal.aborted_ctrlc()) in one place. Wired at the
three outer boundaries: ask(), start_directive, and shell_execute — never at
the per-LLM-round before/after_chat_completion seams.
Session seams: session.started fires for newly created sessions only
(use_session's new_from_ctx paths; resume fires nothing), session.ended in
exit_session while the session is still attached, session.compressed on the
success path of both compress_session call sites (auto-compression and the
.compress command).
Session-held role hooks: Session snapshots the role's HooksMap on set_role,
clears it on clear_role/sync_agent, and re-reads it from the role file on
load; resolved_hooks gains a session leg so role hooks keep firing when the
role lives in the session (fresh set_role and resumed sessions alike).
Top-level agent bracket: agent.started/completed/failed once per agent RUN —
headless --agent dispatch and the interactive agent-context lifetime (enter
via .agent or startup; exit via switch-away or REPL teardown), never per
message. COYOTE_AGENT_ID is synthesized as top-<agent-name>-<nonce>.
Exit-path seams call hooks::drain_pending with a 2s bound so exit hooks
finish spawning before process teardown; interactive mid-session events
never drain.
verdict_gate.py now names every incomplete review on a machine line the
done template renders immediately after the verdict:
`GAUNTLET_REVIEW_INCOMPLETE: <name>[, <name>]` (sorted). Names are the
lanes retry_gate gave up on (`review_incomplete`) plus the `pipeline`
pseudo-lane whenever `signals_error` carries a `PIPELINE-FAULT:` —
parse death, builder / retry-gate / default-lanes crash guards — and the
gate's own crash guard emits the `pipeline` line too. The report gains a
`## Review incomplete` section (after the signals_error blockquote,
immediately before `## Full lane reports`) and the three PIPELINE-FAULT
lane rows carry ` ×N` when the lane was re-run (N = 1 texts unchanged).
retry_gate.py stands in a synthetic `PIPELINE-FAULT: <lane> lane produced
no report` marker for a lane that ran but collected nothing, so it is
stashed, classified FAULTED and never renders SKIPPED downstream.
MAX_RETRY_ELAPSED_SECS trimmed 45600 → 45000 for margin slack.
graph.yaml: `gauntlet_incomplete_line` seeded in initial_state and
spliced into the done output. README + mermaid document retry_gate, the
dotted _next back-edge, the 3-attempt / wall-clock budget, that retry
never narrows selection, the crash-guard append semantics, and the
machine-line contract (present whenever any lane or the pipeline was
incomplete; it can accompany real findings).
Tests: ×N on all three branches (N>1, N=1 byte-identical, no leak onto
non-fault rows), exact incomplete line / section placement, pipeline
pseudo-lane alone and alongside real lanes (via default_lanes.py's real
crash guard), mixed finding+fault, crash-guard chaining from
build_items / retry_gate / parse_fault / verdict_gate, synthetic
no-report marker, done-template wiring, README pins (positive + stale
negative).
Give the review gauntlet a deterministic retry loop for lanes that FAULT
(PIPELINE-FAULT marker, missing verdict sentinel, or a nested graph's own
degraded-run wording) without ever re-running a lane that reached a real
verdict.
- graph.yaml: the four lane maps route to a new `retry_gate` script node
(static `next: verdict_gate`; emits `_next: build_items` to retry).
initial_state gains lane_attempts / kept_results / retry_lanes /
review_incomplete / gauntlet_started_at. settings.timeout 24000 -> 69600
(3 passes x 2 attempts x 11400 + 1200 margin).
- scripts/retry_gate.py (new): stashes every lane report that ran
(completed and faulted alike) and restores reports a re-run pass
overwrote with []; classifies with verdict_gate.py's sentinel regexes
verbatim; counts attempts; retries while attempts < 3 and inside a
45600 s wall-clock budget; otherwise records the lane in
review_incomplete and falls through. Crash guard appends to
signals_error and never retries.
- scripts/signals.py: stamps gauntlet_started_at before the git work so a
failed diff still starts the clock.
- scripts/build_items.py: retry pass emits items only for retry_lanes
(with attempt numbers), adds a `retried:` note to lanes_summary, resets
retry_lanes; falsy-guarded stamp fallback; crash guard appends to
signals_error and preserves lanes_summary.
- Tests: hermetic python3-guarded script tests for retry_gate /
build_items / signals, graph wiring + initial_state pins, sentinel and
LANE_KEYS cross-pins, retry-budget envelope vs settings.timeout, a
first-pass golden payload, and an engine-level executor test proving a
script `_next` back-edge re-fires a static fan-out and an empty map
re-run clears its collect_into.
Plan: PLAN-review-retry section A items 1-3 and 5. Verdict/report surface
(section A items 4 and 6) is TASK-032.
verdict.py: a recorded verification run with exit≠0 (including the -1
TIMEOUT sentinel) or a skipped record now forces DIVERGES with a numbered
complaint naming the command — previously a [FAIL] line sat in the report
appendix while the sentinel read CONFORMS, and callers route on the
sentinel alone. Fail-closed by the same rule: an ENVIRONMENT runner-error
marker when commands WERE declared is one red complaint (the declared
commands never ran, so the run is unproven); the "none declared" marker
and an empty declaration stay non-red. Headers name the red-run count.
run_checks.py: decode command output with encoding=utf-8/errors=replace
(a single non-UTF-8 byte used to raise inside communicate() and collapse
the whole evidence record to an ENVIRONMENT marker); bound the post-kill
pipe drain by DRAIN_TIMEOUT_SECS so a session-escaped grandchild holding
the pipe cannot turn a TIMEOUT record into a node kill.
graph.yaml: settings.timeout 5400 → 9000 = 3600 (run_checks node timeout)
+ 5400 (the previous whole-graph budget, kept for every other stage); the
old value predated run_checks and a graph-level timeout kills from
outside, losing the DIVERGES sentinel. Descriptions and README doctrine
updated (CONFORMS = all MET + zero holistic complaints + zero pipeline
faults + zero red runs).
Tests: envelope pin (settings >= run_checks + 5400), gauntlet lane
timeouts > child graph timeouts and gauntlet >= max_attempts × lane +
margin over every agent lane, non-UTF-8 output, bounded drain (unix),
red/skipped/timeout/none-declared/ENVIRONMENT×declaration matrix,
numbering continuity, header punctuation, wording pins on graph.yaml,
run_checks.py and both READMEs. The deadline test's hung command is now
python3-based instead of GNU sleep (cmd.exe on the Windows CI leg).
code-reviewer verdict.py: finding-verifier now completes "successfully"
with fault markers INSIDE its FINDING_VERIFIER_RESULTS payload
(parse_fault's `pipeline-fault` sentinel id, verify_fault / verdict_gate
crash-guard notes prefixed PIPELINE-FAULT:), which the old
"Agent node failed:" prefix check never saw — a dead parse degraded
silently to "unverified" with no fault recorded. Detect them, anchored on
the sentinel id / note prefix only (never a substring over the report),
counted over the raw entry list so duplicate crash-guard ids are not
collapsed. Faults lead the attention list uncapped; the display cap of 5
applies to non-fault entries; the "always-human trigger(s) fired" reason
fires only when non-fault triggers exist.
code-reviewer render.py: CONTRACT comments at the verdict and summary
lines review-gauntlet's gate parses; every LLM-influenced value rendered
after the summary line (dropped_titles, rigor, bar_provenance,
resolved_surfaces, reason) is newline-sanitised so none can forge a
second summary line.
finding-verifier verdict_gate.py: the outer crash-guard note carries the
PIPELINE-FAULT: prefix (the after-retry UNVERIFIABLE path stays
unprefixed — model misbehaviour, not infrastructure); README names all
three emitters.
deep-research: vet_fault's UNVETTED note tells the critic not to request
revision solely because the assessment is unavailable (it matched
critique's PREPRINT/UNVERIFIED REVISE trigger verbatim, burning the
revision budget on an infra fault); vet_fault and critique_fault dedupe
repeated faults and preserve accumulated faults on crash via
safe_faults(); question_fault keeps its plan-pinned prefix and appends the
lane's question identity so distinct dead lanes no longer collapse in
combine_findings' dedupe.
verdict_gate.py: the code-review critical count is read from render.py's
deterministic summary line (full-shape regex, LAST match wins — a 🔴
quoted inside a finding body or Changes-table row is not a finding); the
raw 🔴 count remains the fail-closed fallback when the line is absent. A
code-review lane whose own rendered verdict line records a pipeline
fault (degraded nested run) now BLOCKS instead of passing as GREEN
(attention), and fault + reds append both blockers. A non-string lane
result item is BLOCKED as malformed, never routed to GREEN.
default_lanes.py: the crash handler now emits the WIDEST safe selection
(code-review ∪ adversary ∪ security) and records a PIPELINE-FAULT in
signals_error so the gate blocks — previously it repaired malformed state
into a NARROWER passable selection with no fault. Probe is added only
when consumer_surface AND a probe_context (local-run recipe) are present,
mirroring build_items' guard, so degraded selection cannot spawn an
INCONCLUSIVE-by-construction probe.
graph.yaml: re-derive the timeout envelope. Agent-node retries each get a
fresh per-attempt budget (agent.rs retry_transient/bounded_attempt) and
the child's "Graph … timed out" matches the transient anchor, so lanes
exceed their child graph's settings.timeout (code-review 11400 > 10800,
adversary 9600 > 9000) and the gauntlet's own timeout covers
max_attempts × lane timeout + margin (2 × 11400 + 1200 = 24000). The
child graphs' internal retry envelopes are deliberately not derived here
(tracked as a follow-up). README/descriptions updated and pinned.
Tests: summary-count/quoted-🔴/fallback/last-match/nested-fault/both-
blockers/malformed-lane, crash-widens-and-records-fault, probe guard,
ALIASES parity with build_items, and e2e render.py → verdict_gate runs.
Adversary re-review follow-ups to 665fee9/402d25a:
- architect/sisyphus spawn templates: the pinned cargo commands are only an
EXAMPLE in a language-agnostic orchestrator — a literal follower in a
non-Rust repo would record 'cargo: command not found' and yield a false
DIVERGES. Each --variables line now carries a substitution cue (pinned).
- run_checks.py: a non-list prior pipeline_faults value is no longer iterated
character by character (test case added).
- Pins: both graphs' verification_commands description wording; the
run_adversary prompt states where the commands come from; the replacement
sentence sits on one physical line.
state_updates::apply merged EVERY top-level key of an llm/agent node's JSON
output into graph state whenever the node had an output_schema, and
structured::extract never validated the output against that schema. Any
prompt text able to steer the model — including plan/diff text pasted from a
repo under review — could therefore plant an undeclared key (e.g.
verification_commands) into state and overwrite a caller-declared value
before a downstream script consumed it.
- apply() now takes the node's output_schema and merges only keys present in
schema.properties; undeclared keys are dropped. No schema, or a schema
without an object properties map, merges nothing.
- Nodes without output_schema are unchanged (None == the old false path);
explicit state_updates are unchanged and still see the full output via
{{output.<key>}}, which remains the author-controlled way to lift a key.
- Callers: llm.rs, agent.rs (x2), rag.rs (None).
- Sweep test bundled_graph_output_schemas_declare_every_key_relied_on: for
every bundled graph, every consumed state key has a declared writer
(initial_state, variable, state_updates target, map key, script-emitted key,
or an output_schema property), and no schema node's field list names a key
its schema omits — so this restriction cannot silently break a shipped
graph. It passes with no graph.yaml changes.
- graph.example.yaml documents the declared-keys-only merge; the residual
disclosed in 665fee9's README/docstring notes is now recorded as closed.
verification_commands — the shell commands the adversary's run_checks stage
executes — were extracted by the LLM parse node from {{initial_prompt}}, a
flat prompt that also carries untrusted plan/diff text pasted from the repo
under review. A planted '## VERIFICATION' block was indistinguishable from the
caller's declaration: prompt injection -> arbitrary command execution.
- adversary + review-gauntlet graphs declare verification_commands as a graph
variable (default '[]'); the key leaves initial_state (or_insert seeding
would otherwise shadow it) and leaves both parse nodes' instructions,
output_schema.properties and required.
- review-gauntlet forwards it to run_adversary via a structured inputs:
passthrough (lone {{verification_commands}} template), not lane-prompt prose.
- run_checks.py accepts a JSON list or a JSON-encoded string of one (variables
arrive as strings); '[]'/[]/missing = none declared; any other shape fails
closed with a PIPELINE-FAULT (nothing executed) that verdict.py turns into
DIVERGES complaint #1.
- architect/sisyphus spawn templates and both READMEs document the
--variables / --agent-variable form and the trust boundary. Known residual
(llm-node auto-merge of undeclared output keys) is disclosed in the docs.
- Tests: list/JSON-string acceptance, fail-closed no-execution proof,
prompt-prose injection proof, verdict wiring, asset pins for both graphs and
orchestrator configs, dispatch-inputs > variable-override > default
precedence.
run_checks.py SIGKILLs the timed-out command's whole process group so a
backgrounded grandchild cannot outlive the record; nothing proved it.
Add a unix-only test that backgrounds `sleep 30`, records its pid, and
probes `kill -0` after the 1s deadline fires.
TOTAL_DEADLINE_SECS (run_checks.py) and the run_checks node's `timeout:`
(graph.yaml) live in different files and could drift until the node
executor kills the script before its in-script degradation runs. Parse
the script's default and assert it stays strictly below the node
timeout, without hardcoding either value.
Sweep every agent node in the six bundled graphs and assert max_attempts
is exactly 2 (step-runner/implement stays 1) against a pinned node list,
so a dropped `max_attempts:` line cannot silently revert a lane to
one-shot (the serde default is 1). Sweep every llm/agent node for a
declared, existing fallback and pin the specific fault routes in
review-gauntlet, code-reviewer, and adversary.
Pin check_criterion's tool list to fs_read/fs_cat/fs_grep/ast_grep and
its 'judged ONLY against the recorded verification runs' instruction,
so the criterion branch can never grow an execution tool unnoticed.
Rust test comments/assert messages and deep-research script docstrings
cited numbered requirement labels (R3/R5) and task labels (TASK-016,
TASK-021) that are defined only in an external plan document. Reword
each to say what it means on its own: fail-safe crash guards, the
validator's fallback-capture warning, task-queue anchors.
FIX A: run_checks.py passed no env= to Popen, so verification commands
inherited the live GRAPH_STATE/GRAPH_STATE_FILE. Every suite script's
load_state() prefers GRAPH_STATE_FILE, so when the adversary reviews a repo
whose own tests exec these scripts (this repo's R5 tests) the leaked file
silently overrode the test state -> false failures. Popen now gets an env
with all GRAPH_STATE* keys removed. The five sibling script-test helpers
(review-gauntlet, code-reviewer, finding-verifier, step-runner,
deep-research) gain .env_remove("GRAPH_STATE_FILE") for hermeticity. New
R5 test loads state via GRAPH_STATE_FILE and asserts a shell-neutral
python3 -c probe sees both vars UNSET.
FIX B: the depth check compares the child's absolute depth against the
SPAWNER's own max_agent_depth (root = 0), so under
architect(0)->sisyphus(1)->review-gauntlet(2)->code-reviewer(3) the
code-review lane faulted "Max agent depth exceeded (4/3)". Limits are now
child depth + 1 headroom along the documented chains, with the chain in a
comment next to each key: code-reviewer 3->5, domain-reviewer 2->6,
architecture-reviewer 2->4, step-runner default->4 (explicit),
review-gauntlet stays 4. domain-reviewer's file-reviewer hop is documented
but inert (can_spawn_agents unset) - left unwired by decision; noted in
config and pinned via a DOCUMENTED_BUT_UNWIRED exemption in the new
bundled-config test, which pins every value and asserts per-hop headroom +
reachability along four chains.
The crash-path assertion checked only "PIPELINE-FAULT:"; verdict.py's died() keys on "PIPELINE-FAULT: criterion ", so a regression there would have passed the test yet stopped the crashed marker from rendering as DIED.
A live code-reviewer run degraded through synthesize's fallback; the
graph already retries once (max_attempts: 2) and falls back to verdict
with synth_failure captured, but nothing pinned that wiring. Add the
wiring test so a future edit cannot silently drop the retry or route.
A live run died at map_criteria: one heavy criterion exhausted
max_iterations (10) with no fallback and sank the whole 17-criterion
review. check_criterion now has a 30-iteration budget, a tool-budget
instruction, and falls back to criterion_fault, which records a
schema-shaped UNMET verdict with a PIPELINE-FAULT evidence marker for
that one criterion; verdict.py renders it as DIED rather than judged.
R3 guards: parse_request (crash → ask_topic), bootstrap_research,
combine_findings (crash → fault-text findings; also lifts branch-local
PIPELINE-FAULT findings into pipeline_faults, deduped), reflexion_gate
(crash fails forward to synthesize), incorporate_feedback (crash still
loops with a generic feedback note), verify_sources (top-level guard +
pipeline_notes fold).
Fallbacks per the plan's naming pins: plan → plan_fault → end_fault
(fail-closed; gains state_updates plan_failure per the TASK-016 rule);
research_one_question → branch-local question_fault (map collects the
fault finding); vet_sources/critique → degrade-visibly markers that
continue to the stage each node's own next pointed to; synthesize →
synth_fault → end_fault. end_fault renders
'DEEP_RESEARCH FAILED — PIPELINE-FAULT: <fault text>'.
Accepted-path visibility: verify_sources folds pipeline_faults into
pipeline_notes ('' when fault-free), appended to end_accepted's output
and the approval question — happy-path output stays byte-identical.
initial_state seeds questions: [] so a dying plan inside the static
fan-out leaves the sibling knowledge_lookup lane mapping over zero
items while end_fault renders.
R5: 19 python3-guarded regression tests + GraphParser wiring test;
bundled warning baseline unchanged.
Dark-Alex-17