feat(subagent): background mode — receipt spawns, per-child delivery, activation, healing sweeps (slices 2b+2c) - #7818
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Task 1 of the background-subagents slice: the spawn-args wire codec now decodes mode: "background" (and the legacy run_in_background: true flag, treated as an alias) instead of rejecting it, and the generated tool schema advertises the mode property. A contradictory mode: "blocking" + run_in_background: true pair is rejected as a model-correctable InvalidInvocation naming the conflict. finish_spawn still hardcodes SpawnSubagentMode::Blocking pending Task 2, which consumes args.mode. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Add AwaitEdgeSettler::bind_input_enqueue (mirroring bind_result_writer's deferred-binding pattern) so the background-mode delivery tail landing in Task 5 can later enqueue a settled child's result as steering input for a live parent run. Wires the resolver's OnceLock field, the inherent and trait-impl bind methods, and the composition-side bind call right after host_input_queue is built. No AwaitEdgeSettler double exists outside the resolver (rg -n "impl AwaitEdgeSettler" crates/ tests/), so there is no second implementor to update. Structural only: no behavior change — the bound port has no caller yet. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Adds AwaitEdgeResolver::deliver_background, the settle_and_maybe_drain branch that routes SpawnSubagentMode::Background edges to it instead of drain_settled_group (blocking mode is unchanged), and the resolver's production HostInputEnqueuePort/LoopInput imports. deliver_background walks the delivery chain end to end: 1. Append (idempotent): frame the child's final text (or failure summary) with FramedSubagentText::frame, accept it onto the parent thread via SessionThreadService::accept_subagent_result, and record the resulting message ref with AwaitEdgeStore::record_result_appended. A re-peeked edge that already carries appended_message_ref reuses it instead of accepting a second row (accept_subagent_result's own idempotency covers a mid-step crash). 2. Attend: query AgentTurnSpawnTreeRuntimePort::recent_runs_for_thread for the parent's newest run; a live, non-terminal record gets the settled result enqueued as LoopInput::SubagentSettled through the bound HostInputEnqueuePort, then AwaitEdgeStore::record_attention. No live run, an unbound port, or the enqueue itself refusing with RunClosed/CapacityExhausted/Disabled all leave the edge parked in ResultAppended and return Ok(Drained) rather than erroring — Task 6 (2c) adds the parked-parent activation path. 3. Close only from AttentionScheduled, via AwaitEdgeStore::close. Turn-runner runtime wiring (crates/loop/ironclaw_turn_runner/src/runtime.rs) is deliberately NOT touched: parts.input_queue there is Option<Arc<dyn HostInputQueue>> (the drain-reader half only), which does not implement HostInputEnqueuePort, so there is no enqueue-capable handle to bind. The resolver treats that unbound state as "no live queue" (the same ResultAppended fall-through), not an error — composition's bind_input_enqueue call (previous commit) covers the production path. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Task 6 (2c): replaces deliver_background's "parked-parent activation lands here" fall-through with a real activate_parked_parent branch. When a background child settles and its parent has no live run (or the live-run enqueue itself refuses), the resolver now wakes the parent through TurnCoordinator::activate with ActivationProvenance::System, preserving the parent's own run profile id. A streak-cap refusal parks the edge at AttentionDeferredStreakCap (unclosed, excluded from autonomous retry); any other activation refusal (ThreadBusy, transient Unavailable, ...) leaves the edge at ResultAppended for the next drive to re-attend. Re-drive entry now special-cases AttentionScheduled (close only) and AttentionDeferredStreakCap (no-op) so a crash between activation and close never triggers a second activate() call. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…own file Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ProcessDependencyQuery gains after/limit fields (keyset cursor over the existing canonical (dependent_process_id, dependency_process_id) sort key). Both None reproduces the pre-existing unbounded query byte-for-byte; a bounded request walks a new process_dependency_canonical_v1 index directly, applying filters before the cursor/limit bound, so a bounded read stops once it collects `limit` matching rows instead of draining the whole scope. Adds the plumbing the run-start sweep needs without wiring it up yet: AwaitEdgeSettler::sweep_thread_on_run_start (trait method + a real resolver implementation, unreached by any production caller), AwaitEdgeStore::list_background_for_thread, and a required await_edge_settler field on RebornTurnRunExecutor (constructed everywhere, not yet invoked from execute_claimed_run). No behavior change for any existing caller. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
RebornTurnRunExecutor now calls AwaitEdgeSettler::sweep_thread_on_run_start before invoke_driver on every claimed run, deriving human_initiated from the claimed run's subagent_activation_provenance (absent/Human is permitted; System/ParentAgent is not). The resolver's sweep walks the thread's background dependency edges (bounded at MAX_QUEUED_INPUTS_PER_RUN) and drives each through deliver_background's existing idempotent re-drive: Settled/ResultAppended/AttentionScheduled redeliver or close; AttentionDeferredStreakCap drains forward only when human_initiated permits it (deliver_background gains a retry_deferred parameter for this one caller — the reactive settle path keeps its autonomous no-retry default). A sweep failure is logged and never fails the run start. boot_recovery's recover_scope replaces its ponytail no-op arms for the background delivery substates: Settled(background)/ResultAppended deliver through deliver_background (parked-parent activation included, System provenance); AttentionScheduled closes only; a streak-capped edge stays parked for a later permitted/human start. Blocking-mode Settled keeps its pre-existing drain_settled_group path unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Extend tests/integration/subagent_await_edge.rs with five scenarios composing real DefaultTurnCoordinator + InMemorySessionThreadService + InMemoryHostInputQueue + AwaitEdgeResolver over a shared in-memory process journal (mirroring resolver/tests.rs's bg_fixture/SweepFixture pattern with production components instead of test doubles): - background_child_result_is_delivered_per_child_while_parent_runs - run_closed_race_is_healed_by_activation - parked_parent_is_activated_with_system_provenance - background_delivery_replay_is_idempotent - streak_capped_result_waits_for_human tests/CLAUDE.md rows added in this same commit per its maintenance rule. coverage-floor.toml: no recapture — this PR adds no production source to any gated crate's denominator (test-only addition to the root integration binary), so the file's own same-PR floor-raise trigger condition does not apply. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Spawn capability description (crates/loop/ironclaw_loop_host/prompts/
spawn_subagent_description.md, already a prompts/*.md file loaded via
include_str!) gains background-mode wording: receipt semantics,
per-child arrival, "do not poll". No Rust change needed — the
descriptor already loads the file verbatim.
- Repoint every stale §-reference in await_edge/{mod,store,resolver}.rs
and await_edge_port.rs doc comments off the deleted
thread-harness-design.md onto docs/internal/reborn/subagent-spawn/
README.md's own sections (boot_recovery.rs carries none). store.rs's
existing §4.1/§4.2 citations already matched the README's numbering
and are left as-is.
- README §2.5: fix the stale claim of "two lazy resolver paths
(resolver.rs:1709, :1785)" — both were test-module lines; the only
production recovery caller is subagent_spawn_port.rs's finish_spawn,
confirmed by `rg -n check_scope_recovered`.
- README §9: pruned to a one-line "R2 shipped in PR #7788" pointer;
promoted R3 (gate escalation walk) into the pending slot per the
section's own "pruned when R2 ships" instruction.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Included review availability: Your plan provides up to 10 included reviews per hour; 7 remain after this review. 📝 WalkthroughSummary by CodeRabbit
WalkthroughThe PR adds blocking and background subagent modes, durable acknowledgment effects, bounded dependency pagination, await-edge delivery and recovery, trusted profile propagation, runtime wiring, and idempotent submission for finalized system messages. ChangesBackground subagent delivery
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🟠 High · up to This PR enables background result delivery, activation, recovery sweeps, and acknowledgment handling, but unresolved paths can silently leave results pending, duplicate callback effects, report failed recovery as successful, or write and activate against the wrong thread. These correctness and availability risks make the current head unsafe to merge without fixes or explicit owner acceptance. Possibly related PRs
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| super::AwaitEdgeState::Settled | ||
| if edge.mode == ironclaw_loop_host::SpawnSubagentMode::Background => | ||
| { | ||
| resolver | ||
| .deliver_background(&edge, parent_run_id, child_run_id, false) | ||
| .await |
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This adds background-edge handling to recover_scope, but a repo-wide caller search shows its only production invocation remains ScopeRecoveryDriver::check_scope_recovered, which is reached from SubagentSpawnCapabilityPort::finish_spawn before a later spawn. After a restart with a parked parent and an edge in Settled or ResultAppended, neither a run-start sweep nor this spawn-triggered recovery runs, so the result never activates the parent unless unrelated new work arrives; invoke a bounded recovery pass during runtime startup.
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Confirmed, and the PR description was wrong — corrected in the body.
Traced every caller: recover_scope's only production invocation is ScopeRecoveryDriver::check_scope_recovered (boot_recovery.rs:106), whose only production caller is finish_spawn (subagent_spawn_port.rs:1000). Nothing in ironclaw_composition or ironclaw_cli invokes it at startup — runtime.rs:274 only constructs the driver.
Your restart scenario holds. A parked parent cannot spawn (that needs an active model turn), so the edge is re-driven only if a human messages that exact thread. The run-start sweep in execute_claimed_run is real but reactive to new work on the scope, and only queries background edges — it is not a boot pass.
Worth noting this branch's own design doc already said so: README §2.5 states "There is no startup caller today — recovery is not a boot pass," and §4.2's third attention trigger is undelivered. The PR body claimed otherwise; that claim is now corrected and the gap is tracked as a follow-up. Outcome is unbounded delay, not data loss — the transcript row is durably Finalized.
| // `ThreadBusy` (the parent raced back to live) and any other | ||
| // refusal this tail doesn't recognize as a streak cap leave the | ||
| // edge parked in `ResultAppended` — the next drive re-attends; | ||
| // sweeps own the retry, this tail does not hard-fail on it. | ||
| Err(_) => Ok(ResolveOutcome::Drained), |
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If the initial live-run query sees no run, but a human run is admitted before activate, activation returns ThreadBusy here and the edge remains ResultAppended. That newly admitted run may already have completed its run-start sweep, so there is no guaranteed next drive and the background result can remain invisible to the model until another turn; handle ThreadBusy by re-reading the active run and enqueueing the settled input into it.
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Confirmed as a real TOCTOU. The live-run query (resolver.rs:679-690) and activate are not atomic, and the ThreadBusy handler (:826-830) deliberately returns without record_attention or close_edge, leaving the edge at ResultAppended.
Whether "no guaranteed next drive" bites depends on the boot-pass gap in your other comment: the newly admitted run sweeps exactly once at claim time, so if that sweep runs before the append is durable, that run will not re-check the edge again during its lifetime.
Severity is bounded delay, not loss — the edge stays durably ResultAppended, so it is fully recoverable once a startup pass exists. Largely subsumed by that fix rather than an independent track, so I am not adding a ThreadBusy-specific retry that would race the same way.
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Inline comments:
In `@crates/domains/ironclaw_threads/src/filesystem_service.rs`:
- Around line 2758-2763: Restrict the Finalized early return in
mark_message_submitted to subagent-result rows by also requiring message.kind ==
MessageKind::System. Apply this identical condition in
crates/domains/ironclaw_threads/src/filesystem_service.rs lines 2758-2763 and
crates/domains/ironclaw_threads/src/in_memory.rs lines 712-720; other finalized
message kinds must continue returning InvalidMessageTransition.
In `@crates/kernel/ironclaw_processes/src/journal_store.rs`:
- Around line 1178-1217: Add a shared caller-level parity test for
ProcessDependencyQuery covering bounded pagination, filtering, canonical
ordering, and cursor/index behavior; run the same assertions against both
PostgreSQL/libSQL and the existing in-memory-backed filesystem setup. Reuse the
established backend test harness and test data builders, keeping the production
query implementation unchanged.
In `@crates/kernel/ironclaw_processes/src/journal_store/rows.rs`:
- Around line 962-989: Update the bounded query loop around the cursor
construction and exhaustion check so a full page with no pagination cursor
returns ProcessJournalStoreError::Deserialization, matching
query_indexed_collection. Preserve normal cursor advancement for valid rows and
only terminate successfully when the page is exhausted with a valid cursor or no
further rows remain.
In `@docs/internal/reborn/subagent-spawn/README.md`:
- Around line 734-755: Update the §9 R2 closeout statement to accurately name
all shipped slices and complete the sentence describing the slices-2b/2c
producers. In §2.1, revise the “What ships today” behavior to match the
implementation: background mode is accepted, advertised by the parameters
schema, and finish_spawn uses the requested mode instead of always selecting
Blocking; remove the stale background_subagents_disabled rejection claims.
In `@tests/integration/subagent_await_edge.rs`:
- Around line 335-347: Update tests/integration/coverage-floor.toml to include
or adjust the coverage-floor entries for all five background-delivery scenarios
added by Task 8, preserving the scenario identifiers already defined in
tests/AGENTS.md and recording the recaptured coverage values from this PR.
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📒 Files selected for processing (25)
crates/app/ironclaw_composition/src/runtime.rscrates/domains/ironclaw_threads/src/filesystem_service.rscrates/domains/ironclaw_threads/src/in_memory.rscrates/domains/ironclaw_threads/tests/subagent_result_acceptance.rscrates/kernel/ironclaw_processes/src/journal.rscrates/kernel/ironclaw_processes/src/journal_store.rscrates/kernel/ironclaw_processes/src/journal_store/rows.rscrates/kernel/ironclaw_processes/tests/process_journal_store_contract.rscrates/loop/ironclaw_loop_host/prompts/spawn_subagent_description.mdcrates/loop/ironclaw_loop_host/src/await_edge_port.rscrates/loop/ironclaw_loop_host/src/subagent_spawn_port.rscrates/loop/ironclaw_loop_host/src/subagent_spawn_port/tests.rscrates/loop/ironclaw_turn_runner/src/runtime.rscrates/loop/ironclaw_turn_runner/src/subagent/await_edge/boot_recovery.rscrates/loop/ironclaw_turn_runner/src/subagent/await_edge/boot_recovery/tests.rscrates/loop/ironclaw_turn_runner/src/subagent/await_edge/mod.rscrates/loop/ironclaw_turn_runner/src/subagent/await_edge/resolver.rscrates/loop/ironclaw_turn_runner/src/subagent/await_edge/resolver/tests.rscrates/loop/ironclaw_turn_runner/src/subagent/await_edge/store.rscrates/loop/ironclaw_turn_runner/src/subagent/await_edge/store/tests.rscrates/loop/ironclaw_turn_runner/src/turn_run_executor.rscrates/loop/ironclaw_turn_runner/tests/turn_run_executor.rsdocs/internal/reborn/subagent-spawn/README.mdtests/AGENTS.mdtests/integration/subagent_await_edge.rs
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Review · Summary
Found a delivery-loss race plus two run-start sweep defects.
Findings: 🔴 High 1 · 🟠 Medium 2
Code-specific findings are attached to the diff.
Validation
- ✅ Changed-line verification — All reported locations were verified against the pull request diff.
Review details
- Run:
f58d18bd-2980-4271-ae3d-3fe716ee6fe0 - Attempts: 1
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Code Review (multi-agent)
Intent: Add background subagent receipt spawning, per-child delivery, activation, recovery sweeps, paging, and integration coverage, gated on deployment dependency #7788.
Stats: 6 findings (from 6 raw, 6 after filter, 6 after dedup) across 5 files. Reviewers run: correctness, security, performance, design, coverage. Reviewers failed: none. Body-only: 0. Evidence quality: degraded (tarball fallback; CodeGraph unavailable).
Error Handling
- High Do not ignore failed recovery before admitting a new spawn (
crates/loop/ironclaw_turn_runner/src/subagent/await_edge/boot_recovery.rs:107-111, confidence 88) — anchor:crates/loop/ironclaw_turn_runner/src/subagent/await_edge/boot_recovery.rs:107
When the dependency query or delivery fails,recover_scopeincrementsreport.failed, but this method discards the report and returnsOk(()). A new blocking child can then be opened while an older settled edge remains undrained; the parent may block on the new gate, after which recovery of the old edge cannot resume it through its stale gate and its result/reservation can remain stranded.
Performance
- Medium Background sweep can scan the entire dependency history (
crates/kernel/ironclaw_processes/src/journal_store/rows.rs:949-951, confidence 95) — anchor:crates/kernel/ironclaw_processes/src/journal_store/rows.rs:949
The run-start sweep requests only 32 matching background edges, butgroup_refandclosedare filtered in memory after reading the canonical scope index. With many historical or non-background dependencies, this loop scans every dependency row before returning, making each run start O(total scope history) and increasingly expensive as retained journal data grows.
Matrix
- Medium Exercise bounded dependency paging on libSQL (
crates/kernel/ironclaw_processes/tests/process_journal_store_contract.rs:2949-3045, confidence 94) — anchor:crates/kernel/ironclaw_processes/tests/process_journal_store_contract.rs:2949
The new bounded dependency-query contract is tested only with InMemoryBackend, while this store is also exercised against libSQL. Addquery_process_dependencies_bounded_mode_pages_the_filtered_canonical_order_on_libsqlusing a real libSQL filesystem to verify ordered-index creation, keyset pagination, filtering, and cursor resumption on the shipping durable backend.
Tests
- Medium Cover all bounded dependency-query branches (
crates/kernel/ironclaw_processes/tests/process_journal_store_contract.rs:2957-3045, confidence 91) — anchor:crates/kernel/ironclaw_processes/tests/process_journal_store_contract.rs:2957
The bounded implementation has untested branches forlimit == 0,dependent_process_id: Some(...), andinclude_closed: true; the added test covers only a positive limit, scope-wide query, and closed rows excluded. Add coverage for those cases, especially because bounded mode uses a separate ordered-query path from the existing unbounded tests.
Regression Escape
- Medium Exercise composed runtime input-enqueue wiring (
crates/app/ironclaw_composition/src/runtime.rs:3822-3830, confidence 84) — anchor:crates/app/ironclaw_composition/src/runtime.rs:3822
The new production composition binding ofAwaitEdgeSettlertoHostInputEnqueuePortis not exercised by the added integration test:tests/integration/subagent_await_edge.rsconstructs and binds the resolver directly. A wiring regression inbuild_runtime_with_resource_governorcould therefore leave shipped background delivery parked while resolver-level tests remain green. Add a scenario through production runtime composition asserting a settled background child reaches the parent's live input queue.
Duplication
- Medium Reduce repeated resolver test setup (
crates/loop/ironclaw_turn_runner/src/subagent/await_edge/resolver/tests.rs:2060-2075, confidence 90) — anchor:crates/loop/ironclaw_turn_runner/src/subagent/await_edge/resolver/tests.rs:2060
The deterministic duplication scan found repeated 16-line resolver test blocks and 59 clones across the changed await-edge test sources. Consolidating the repeated setup would reduce maintenance drift as the failure matrix expands.
Mechanical pre-pass: no production unwrap/expect, suspicious slicing, or cfg findings; jscpd reported repeated test setup blocks.
The PR body’s deployment gate for #7788 and deferred coverage-floor recapture remain important rollout/verification constraints.
| /// thread/scope/run, plus a resolver wired the same way production wires | ||
| /// one (`ironclaw_turn_runner::runtime.rs`). `open_background_edge` opens | ||
| /// one background-mode dependency edge directly against the real process | ||
| /// journal (`store/tests.rs`'s `settled_background_edge` pattern, not the |
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Medium — Reduce repeated resolver test setup.
The deterministic duplication scan found repeated 16-line resolver test blocks and 59 clones across the changed await-edge test sources. Consolidating the repeated setup would reduce maintenance drift as the failure matrix expands.
Fix: Extract only the repeated test setup into a focused fixture helper after confirming the duplicated blocks have identical behavior.
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Acknowledged, deferred. Cosmetic against the correctness findings on this PR, and the resolver test surface will move once the sweep/close disposition lands — consolidating now would mean redoing it. Tracked with the other deferred cleanups in the PR body.
Higher is better. 85+ clean · ~60 one loose end · ≤40 a critical defect caps the axis. I would approach this differently. If I were building this, I would start from one shared msg: to ThreadMessageId parser at the existing transcript/loop boundary and a typed durable refusal path inside activate_parked_parent, because this branch duplicates parsing and turns non-streak activation failures into Drained. (wrong approach) Strengths
How I read this changeI traced the producer path from background spawn through durable append, parent attention, activation or queue enqueue, close, run-start sweeps, and recovery. I expected those additions to extend the existing await-edge state machine while keeping failure outcomes durable and typed. The ownership map does fit that expectation, but the implementation leaves startup recovery reachable only from a lazy spawn hook, permits an effectively unbounded paging request, duplicates a small parser, and maps non-streak activation errors to successful drainage. That combination makes the approach materially riskier than the otherwise sound placement suggests. Right-shape sketch (not a patch)The expected shape keeps one parser and preserves every activation refusal as a typed durable obligation; the built shape loses those failures at the resolver boundary. FindingsCritical
Normal
Claim verdicts
N/A notes: none. System surface is sufficient and every axis has seven applicable sub-checks. No rule-revisit note survived validation. |
The D14 guard in `mark_message_submitted` checked `status == Finalized` alone, so every finalized row — `Assistant`, `ToolResultReference`, `CapabilityDisplayPreview` — returned Ok where it previously returned `InvalidMessageTransition`. A caller aiming at the wrong message id was masked instead of failing loud. Subagent-result rows are written `MessageKind::System` by `accept_subagent_result` in both backends, so the guard now requires that kind; every other finalized kind falls through to `ensure_user_accepted` and errors as before. Extends `a_result_row_is_refused_by_the_steering_ladder` with the negative half; it fails on both backends without the narrowing. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
…memory Two defects in the bounded dependency query added by this branch. `dependent_id` is the canonical index's sort key, not part of its equality prefix. `ordered_query_prefix_values` requires the filter's equality-key set to equal exactly the keys preceding the sort key (here `lineage_scope_key` alone), so passing `dependent_process_id` as an index-level equality filter made the ordered query Unsupported instead of narrowing it. Latent today — no caller pairs `dependent_process_id: Some(..)` with a `limit` — but armed for the next one. It now filters in memory per page, like `group_ref`/`include_closed`. A full page whose last row yields no cursor now returns Deserialization rather than breaking out with a silent short read, matching the unbounded sibling `query_indexed_collection`. Adds libSQL parity coverage and the previously untested `limit == 0`, `dependent_process_id: Some(..)`, and `include_closed: true` branches; the dependent-filter bug surfaced from that coverage. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
§2.1 "What ships today" still described the pre-slice-2b behavior — codec rejects background via `background_subagents_disabled()`, schema hides `mode`, `finish_spawn` hard-codes Blocking — all three now false. §9's closeout sentence was truncated and claimed three slices while naming two. Rewritten against live code, keeping the caveat that `builtin.spawn_subagent` remains in `disabled_capability_ids` and is not model-reachable until R9. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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The background delivery, durable acknowledgment, activation, and recovery paths appear sound and idempotent. No blocking correctness, data-loss, or state-corruption issues remain in the current revision.
Checks: git diff --check, cargo fmt --all -- --check, and documentation/target-tree scripts passed; Rust tests could not run locally because the cc linker is unavailable, while affected GitHub CI checks are green.
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Background-subagent slices 2b+2c. The entire new producer path is gated behind the production deny filter (builtin.spawn_subagent stays disabled), so it isn't model-reachable until R9; the production-reachable changes are additive and check out.
- The
mark_message_submittedFinalized guard is correctly narrowed toMessageKind::Systemin both backends (filesystem_service.rs:2766,in_memory.rs:722); other finalized kinds still fall through toensure_user_accepted. - Input-queue changes are safe:
ack_effectdefaults toNone,retry_pending_ack_effectsno-ops when unbound/empty and swallows no handler failures, and the dedupedtracked_sequencescapacity count is equivalent to the old sum (acked entries are removed fromentriesatinput_queue.rs:566-567).
Non-blocking follow-ups:
- Deploy-ordering: this branch is the first writer of
LoopInput::SubagentSettledand theProcessDependencyStatedelivery substates with no tolerant reader, so it must not ship before slice 2a (#7788) is fleet-wide. Captured in the PR body — just confirm rollout order at merge. resolver.rs:689-695:deliver_backgroundpicksoutput.final_textbeforefailure_summarywithout treating a blank string as absent, so a failed child with an empty message can produce an empty transcript entry that hides the failure. Mirrorparent_result_summary's.filter(|t| !t.trim().is_empty()). Cosmetic and on the deny-filtered path.
Checks: read the full diff, prior review rounds, and unresolved threads; focused local tests passed (spawn/queue/delivery/replay/recovery/activation/sweeps/journal/integration); git diff --check clean; CI green (build, Clippy all-features, Code Style, Reborn integration, crate buckets, WebUI E2E, Railway deploy). Cold local cargo build deliberately skipped given green CI on this HEAD.
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The background subagent delivery path is coherently wired, preserves results across enqueue/ack and terminal-run recovery, and introduces no supported merge-blocking issue. The feature also remains disabled by default, while the required deployment ordering is already explicitly documented.
Local checks: full diff and surrounding production paths reviewed; all GitHub CI lanes passed. Focused local Rust tests could not compile because the environment lacks the cc linker, and formatting was blocked by package/build-lock contention.
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Slices 2b+2c are large but well-contained: the entire background-subagent producer path is gated behind the builtin.spawn_subagent deny filter (not model-reachable in prod), the production-reachable changes compile and are byte-compatible on existing paths, and prior blocking feedback was resolved. Approving with two non-blocking notes.
- Non-blocking (rollout, not a code defect): this branch is the first writer of
LoopInput::SubagentSettledinto the durable run-queue document and of the newProcessDependencyStatedelivery substates, and slice 2a (#7788) has no tolerant reader — an old binary meeting one of these shapes fails the run's whole queue. TheSubagentSettledvariant already exists at merge-base; only the writer is new. Confirm #7788 is fleet-wide before shipping; rollback afterward is a plain revert. - Non-blocking (hardening, deny-filtered path):
deliver_background(crates/loop/ironclaw_turn_runner/src/subagent/await_edge/resolver.rs:697-730) derives the result-write/activation target fromedge.parent_thread_idwithout re-anchoring to a trusted parent-run binding on re-drive. Confined to the non-reachable path today; worth anchoring before the feature is un-gated at R9.
Checks: cargo fmt --all -- --check pass; cargo check --all-features on the production-reachable changed crates (ironclaw_threads, ironclaw_processes, ironclaw_loop_host, ironclaw_turns, ironclaw_turn_runner) all exit 0; deny filter confirmed (default_disabled_capability_ids() includes the spawn capability); targeted integration + composition-delivery tests 8 passed / 0 failed; gh pr checks 7818 all required checks green (32 successful), worktree clean, GitHub read-only.
Conflict resolutions, both sides kept throughout: - turn_run_executor: after_turn hook dispatcher factory (ours) + await_edge_settler run-start sweep (main, #7818); the sweep-test helper adapts to this branch's generalized ExecutorTestHostFactory, and the claimed-run builders unify into one claimed_run_full over the actor, profile, and provenance axes. - unbound_turn: declared limits (ours) + require_no_approval (main, #7812). The scheduled curation pass declares require_no_approval: false — its surface is already narrowed to the manifest's declared tools, and silently dropping an approval-gated declared tool would break the pass invisibly; parking visibly is the better failure (comment at the site). - composition budget: re-measured the merged tree per the pair hazard — 42479 (ours) / 42371 (main) -> 42732 measured, ceiling+observed+mirrored COMPOSITION_ABSOLUTE_SRC_LOC move together. - curation rewrite scenario: reader assertions follow #7001's byte-stable prefix contract (memory context now rides the conversation tail), matching main's own always-on recall scenario: assert_model_request_contains. Verified: cargo check --workspace --tests clean; clippy clean; fmt clean; turn_runner executor tests, ironclaw_assistant lib (537), architecture tests, and the reborn_group_memory e2e group all pass; composition budget gate OK (mass 42732/42732, dispatch 844/845 effective).
… activation, healing sweeps (slices 2b+2c) (nearai#7818) * feat(loop-host): spawn codec and schema accept background mode Task 1 of the background-subagents slice: the spawn-args wire codec now decodes mode: "background" (and the legacy run_in_background: true flag, treated as an alias) instead of rejecting it, and the generated tool schema advertises the mode property. A contradictory mode: "blocking" + run_in_background: true pair is rejected as a model-correctable InvalidInvocation naming the conflict. finish_spawn still hardcodes SpawnSubagentMode::Blocking pending Task 2, which consumes args.mode. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(loop-host): background spawn returns an immediate receipt Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(threads): submitted flip returns a terminal row unchanged Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(turn-runner): close refuses an edge holding an undelivered result Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * refactor(loop-host): bind_input_enqueue on the settler seam Add AwaitEdgeSettler::bind_input_enqueue (mirroring bind_result_writer's deferred-binding pattern) so the background-mode delivery tail landing in Task 5 can later enqueue a settled child's result as steering input for a live parent run. Wires the resolver's OnceLock field, the inherent and trait-impl bind methods, and the composition-side bind call right after host_input_queue is built. No AwaitEdgeSettler double exists outside the resolver (rg -n "impl AwaitEdgeSettler" crates/ tests/), so there is no second implementor to update. Structural only: no behavior change — the bound port has no caller yet. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(turn-runner): background results append and enqueue per child Adds AwaitEdgeResolver::deliver_background, the settle_and_maybe_drain branch that routes SpawnSubagentMode::Background edges to it instead of drain_settled_group (blocking mode is unchanged), and the resolver's production HostInputEnqueuePort/LoopInput imports. deliver_background walks the delivery chain end to end: 1. Append (idempotent): frame the child's final text (or failure summary) with FramedSubagentText::frame, accept it onto the parent thread via SessionThreadService::accept_subagent_result, and record the resulting message ref with AwaitEdgeStore::record_result_appended. A re-peeked edge that already carries appended_message_ref reuses it instead of accepting a second row (accept_subagent_result's own idempotency covers a mid-step crash). 2. Attend: query AgentTurnSpawnTreeRuntimePort::recent_runs_for_thread for the parent's newest run; a live, non-terminal record gets the settled result enqueued as LoopInput::SubagentSettled through the bound HostInputEnqueuePort, then AwaitEdgeStore::record_attention. No live run, an unbound port, or the enqueue itself refusing with RunClosed/CapacityExhausted/Disabled all leave the edge parked in ResultAppended and return Ok(Drained) rather than erroring — Task 6 (2c) adds the parked-parent activation path. 3. Close only from AttentionScheduled, via AwaitEdgeStore::close. Turn-runner runtime wiring (crates/loop/ironclaw_turn_runner/src/runtime.rs) is deliberately NOT touched: parts.input_queue there is Option<Arc<dyn HostInputQueue>> (the drain-reader half only), which does not implement HostInputEnqueuePort, so there is no enqueue-capable handle to bind. The resolver treats that unbound state as "no live queue" (the same ResultAppended fall-through), not an error — composition's bind_input_enqueue call (previous commit) covers the production path. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(turn-runner): parked parents are activated with system provenance Task 6 (2c): replaces deliver_background's "parked-parent activation lands here" fall-through with a real activate_parked_parent branch. When a background child settles and its parent has no live run (or the live-run enqueue itself refuses), the resolver now wakes the parent through TurnCoordinator::activate with ActivationProvenance::System, preserving the parent's own run profile id. A streak-cap refusal parks the edge at AttentionDeferredStreakCap (unclosed, excluded from autonomous retry); any other activation refusal (ThreadBusy, transient Unavailable, ...) leaves the edge at ResultAppended for the next drive to re-attend. Re-drive entry now special-cases AttentionScheduled (close only) and AttentionDeferredStreakCap (no-op) so a crash between activation and close never triggers a second activate() call. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * refactor(turn-runner): move the await-edge resolver tests into their own file Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * refactor(processes): keyset paging on the dependency query ProcessDependencyQuery gains after/limit fields (keyset cursor over the existing canonical (dependent_process_id, dependency_process_id) sort key). Both None reproduces the pre-existing unbounded query byte-for-byte; a bounded request walks a new process_dependency_canonical_v1 index directly, applying filters before the cursor/limit bound, so a bounded read stops once it collects `limit` matching rows instead of draining the whole scope. Adds the plumbing the run-start sweep needs without wiring it up yet: AwaitEdgeSettler::sweep_thread_on_run_start (trait method + a real resolver implementation, unreached by any production caller), AwaitEdgeStore::list_background_for_thread, and a required await_edge_settler field on RebornTurnRunExecutor (constructed everywhere, not yet invoked from execute_claimed_run). No behavior change for any existing caller. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(turn-runner): run-start and boot sweeps heal background delivery RebornTurnRunExecutor now calls AwaitEdgeSettler::sweep_thread_on_run_start before invoke_driver on every claimed run, deriving human_initiated from the claimed run's subagent_activation_provenance (absent/Human is permitted; System/ParentAgent is not). The resolver's sweep walks the thread's background dependency edges (bounded at MAX_QUEUED_INPUTS_PER_RUN) and drives each through deliver_background's existing idempotent re-drive: Settled/ResultAppended/AttentionScheduled redeliver or close; AttentionDeferredStreakCap drains forward only when human_initiated permits it (deliver_background gains a retry_deferred parameter for this one caller — the reactive settle path keeps its autonomous no-retry default). A sweep failure is logged and never fails the run start. boot_recovery's recover_scope replaces its ponytail no-op arms for the background delivery substates: Settled(background)/ResultAppended deliver through deliver_background (parked-parent activation included, System provenance); AttentionScheduled closes only; a streak-capped edge stays parked for a later permitted/human start. Blocking-mode Settled keeps its pre-existing drain_settled_group path unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * test(integration): background delivery scenarios Extend tests/integration/subagent_await_edge.rs with five scenarios composing real DefaultTurnCoordinator + InMemorySessionThreadService + InMemoryHostInputQueue + AwaitEdgeResolver over a shared in-memory process journal (mirroring resolver/tests.rs's bg_fixture/SweepFixture pattern with production components instead of test doubles): - background_child_result_is_delivered_per_child_while_parent_runs - run_closed_race_is_healed_by_activation - parked_parent_is_activated_with_system_provenance - background_delivery_replay_is_idempotent - streak_capped_result_waits_for_human tests/CLAUDE.md rows added in this same commit per its maintenance rule. coverage-floor.toml: no recapture — this PR adds no production source to any gated crate's denominator (test-only addition to the root integration binary), so the file's own same-PR floor-raise trigger condition does not apply. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * docs(subagent-spawn): R2 closeout — prompt wording and §9 prune - Spawn capability description (crates/loop/ironclaw_loop_host/prompts/ spawn_subagent_description.md, already a prompts/*.md file loaded via include_str!) gains background-mode wording: receipt semantics, per-child arrival, "do not poll". No Rust change needed — the descriptor already loads the file verbatim. - Repoint every stale §-reference in await_edge/{mod,store,resolver}.rs and await_edge_port.rs doc comments off the deleted thread-harness-design.md onto docs/internal/reborn/subagent-spawn/ README.md's own sections (boot_recovery.rs carries none). store.rs's existing §4.1/§4.2 citations already matched the README's numbering and are left as-is. - README §2.5: fix the stale claim of "two lazy resolver paths (resolver.rs:1709, :1785)" — both were test-module lines; the only production recovery caller is subagent_spawn_port.rs's finish_spawn, confirmed by `rg -n check_scope_recovered`. - README §9: pruned to a one-line "R2 shipped in PR nearai#7788" pointer; promoted R3 (gate escalation walk) into the pending slot per the section's own "pruned when R2 ships" instruction. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(threads): scope the D14 finalized no-op to subagent-result rows The D14 guard in `mark_message_submitted` checked `status == Finalized` alone, so every finalized row — `Assistant`, `ToolResultReference`, `CapabilityDisplayPreview` — returned Ok where it previously returned `InvalidMessageTransition`. A caller aiming at the wrong message id was masked instead of failing loud. Subagent-result rows are written `MessageKind::System` by `accept_subagent_result` in both backends, so the guard now requires that kind; every other finalized kind falls through to `ensure_user_accepted` and errors as before. Extends `a_result_row_is_refused_by_the_steering_ladder` with the negative half; it fails on both backends without the narrowing. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * fix(processes): fail loud on truncated pages, filter dependent_id in memory Two defects in the bounded dependency query added by this branch. `dependent_id` is the canonical index's sort key, not part of its equality prefix. `ordered_query_prefix_values` requires the filter's equality-key set to equal exactly the keys preceding the sort key (here `lineage_scope_key` alone), so passing `dependent_process_id` as an index-level equality filter made the ordered query Unsupported instead of narrowing it. Latent today — no caller pairs `dependent_process_id: Some(..)` with a `limit` — but armed for the next one. It now filters in memory per page, like `group_ref`/`include_closed`. A full page whose last row yields no cursor now returns Deserialization rather than breaking out with a silent short read, matching the unbounded sibling `query_indexed_collection`. Adds libSQL parity coverage and the previously untested `limit == 0`, `dependent_process_id: Some(..)`, and `include_closed: true` branches; the dependent-filter bug surfaced from that coverage. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * docs(subagent-spawn): correct §2.1 and finish the §9 closeout §2.1 "What ships today" still described the pre-slice-2b behavior — codec rejects background via `background_subagents_disabled()`, schema hides `mode`, `finish_spawn` hard-codes Blocking — all three now false. §9's closeout sentence was truncated and claimed three slices while naming two. Rewritten against live code, keeping the caveat that `builtin.spawn_subagent` remains in `disabled_capability_ids` and is not model-reachable until R9. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * fix(ci): repoint coverage exemptions after the resolver test move f0c0b65 moved the await-edge resolver tests into their own file, shrinking resolver.rs 2141 -> 1535 lines, but left two line-referenced exemptions pointing at the old offsets. #38 (2032) fell past EOF and failed the changed-coverage manifest validator; #55 (563) still resolved and so silently exempted unrelated code. Both statements verified present in each revision: the background gate-ref arm moved 2032 -> 1427, and handle_child_terminal_inner's return type 563 -> 853. Scope, owner, and rationale are unchanged. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> * fix(composition): stay within merged runtime budget * fix(processes): require finite cursor query limits * fix(turn-runner): fail closed on recovery errors * fix(subagents): close background edges after input ack * fix(turns): preserve profile snapshots across activation * fix(processes): prevent actionable sweep starvation * fix(processes): preserve per-state pagination * fix(loop-host): retain rejected ack handlers * test(processes): cover filtered pagination backends * fix(subagents): address delivery review feedback * fix(ci): recapture subagent coverage floors * fix(ci): preserve concrete delivery test handles * fix(composition): gate delivery test handles * fix(composition): preserve production runtime ownership * fix(composition): mark retained delivery handles --------- Co-authored-by: Henry Park <16583448+henrypark133@users.noreply.github.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Summary
Slices 2b + 2c of R2 background subagents — the producer half that turns on the surface #7788 (slice 2a) landed inert. One PR by explicit decision; commits are ordered so every 2b change precedes 2c, making a later split mechanical.
Read this first — deployment gate: this branch is the first writer of two persisted shapes whose readers shipped in 2a with no tolerant reader:
LoopInput::SubagentSettled(persisted verbatim inside the durable run-queue document, which deserializes whole — an old binary meeting one fails the run's entire queue) and theProcessDependencyStatedelivery substates (journal rows). Do not deploy this before #7788 is rolled out fleet-wide (that PR's rollback plan says the same from the other side). With 2a everywhere, rollback of this PR is a plain revert — all new shapes stop being written and existing readers ignore them.What changes, by layer
ironclaw_loop_host(spawn port, 2b): codec + JSON schema acceptmode: "background"(run_in_background: trueis an alias; the contradictory combination is rejected); the wire-mirror enum andbackground_subagents_disabled()are deleted.finish_spawnthreads the real mode: background spawns return the immediate receipt via the previously-caller-lessresolution::spawned_child_run(slot closes, no gate) and write their edge withgate:subagent-bg-{child_run_id}/ journalgroup_ref = "bg:{parent_thread_id}"— the deterministic recovery key. Model-facing description moved toprompts/spawn_subagent_description.mdwith the background wording ("results appear as tagged inputs; do not poll").ironclaw_threads(2b, D14):mark_message_submittedreturns an already-Finalizedrow unchanged in both backends (the queue's best-effort flip on the delivered result row), beside the existing idempotent-resubmit return.ensure_user_acceptedis not widened;mark_message_queuedstill refuses the row (pinned).ironclaw_turn_runner(resolver, 2b+2c): the background taildeliver_background— idempotent append throughaccept_subagent_result(dedupe onsubagent-result:{parent_run_id}×{child_run_id}; replay returns the same ref), then attention: enqueueLoopInput::SubagentSettledinto a live parent run (AttentionOutcome::Queued), orTurnCoordinator::activatewithSystemprovenance and the parent's preserved run profile (Activated) — the first productionactivatecaller. Streak-cap refusal parks the edge atAttentionDeferredStreakCap; every other refusal leavesResultAppendedfor the sweeps. Neverresume_turn.AwaitEdgeStore::closenow refuses undelivered edges with a typedUndeliveredResulterror. Blocking tail untouched.ironclaw_turn_runner(sweeps, 2c): run-start sweep inexecute_claimed_run(before the driver): drainsResultAppended, closesAttentionScheduledwithout re-delivery, drains streak-deferred edges only on human-provenance starts; capped atMAX_QUEUED_INPUTS_PER_RUN, failures log atdebug!and never fail the run start.recover_scope's per-edge arms now re-drive backgroundSettled/ResultAppendedthroughdeliver_background(activation included), replacing theponytail:no-op arms. Correction (was overstated in the original body): this is not a boot pass.recover_scope's only production caller remainsScopeRecoveryDriver::check_scope_recovered, reached lazily fromfinish_spawnbefore a later spawn; nothing invokes it at process startup. §4.2's third attention trigger (boot pass) is therefore still undelivered, asREADME.md§2.5 already states ("There is no startup caller today"). A parked parent holding aResultAppendededge across a restart is re-driven only when the thread is next engaged. See the follow-up findings section.ironclaw_processes(kernel):ProcessDependencyQuerygains keyset paging (aftercursor over the canonical(dependent, dependency)order +limit; both-Nonebyte-identical), pushed into the page loop — the standing bounded-query charter fix the sweeps require.ironclaw_loop_host(seam):AwaitEdgeSettlergainsbind_input_enqueue(fourth cell of the existing late-bind pattern) and the sweep entry point; composition binds the sharedFilesystemHostInputQueue. No newLoop*Port, no new crate edges.tests/integration: five scenarios inreborn_integration_subagent_await_edge— per-child delivery while the parent runs,RunClosedrace healed by activation, parked parent activated withSystemprovenance (asserted via the journaledsubagent_activation_provenance), full replay idempotency across every state boundary, streak-capped result draining on a human run start. scenario rows updated intests/AGENTS.mdin the same commit (post-docs(guidance): repo-wide agent-guidance audit — fix drift, prune 21.5k lines, consolidate tests/ onto AGENTS.md convention #7797 home).ironclaw_loop_contracts, not a loop_host resolution module).What does NOT change
builtin.spawn_subagentstays indisabled_capability_ids; the non-vacuous pin intests/integration/tool_call.rsis untouched. Nothing here is model-reachable until R9.ensure_user_accepted, all existing receipts.Change Type
Linked Issue
Follows #7788 (slice 2a). Roadmap:
docs/internal/reborn/subagent-spawn/README.md§6 (R2).Validation
cargo fmt --all -- --checkironclaw_loop_host,ironclaw_turn_runner,ironclaw_threads,ironclaw_processes,ironclaw_turns,ironclaw_architecture_tests,reborn_integration_subagent_await_edge(7/7),reborn_integration_tool_calldeny-filter pin-D warningsclean on every touched cratebash scripts/preflight-gates.sh— 314/314 green, run locally (required: PR CI'srebornname filter skips the loop-port scan, process-storage scan,composition_*gates, and the threads name-collision gate)reborn_integration_tool_call::current_tool_surface_overrides_stale_assistant_unavailable_claimoverflows its stack in debug builds on some machines (documented in feat(subagent): background-delivery surface (slice 2a) + shared acceptance protocol #7788; reproduces at the merge base).Review notes
gate_overridewhen one exists (identity only — recovery keys offgroup_ref); non-streak activation refusals park the edge for the sweeps rather than hard-failing (per §4.1, every refusal is a durable sweep obligation, never loss).resolver.rs/resolver/tests.rsfurther; harmonizing one error-message hyphenation; a docstring on one two-failure crash-window test.🤖 Generated with Claude Code
Late findings (post-review, pre-PR)
scripts/ci/reborn-local-coverage-ratchet.sh) cannot complete on ANY branch right now —ironclaw_composition::runtime::capability_host::tests::tests::capability_port_omits_host_disclosure_without_confirmed_host_mountfails deterministically (assertsSome(InputEncode), getsSome(FilesystemDenied)), verified failing on origin/main in a clean worktree (5/5 in isolation on this branch, reproduced at3fd143933). Pre-existing, unrelated to this diff (this branch's only composition change is +9 lines of await-edge bind wiring;capability_host/untouched). Reported here per repo rule rather than patched. The floor file's captured totals are stale for the crates this branch grew; the ratchet still enforces correctly against live numbers.mainafter docs(guidance): repo-wide agent-guidance audit — fix drift, prune 21.5k lines, consolidate tests/ onto AGENTS.md convention #7797 (guidance audit): scenario rows live intests/AGENTS.md(new canonical home),tests/CLAUDE.mdstays the symlink; the README §9 prune was re-merged over docs(guidance): repo-wide agent-guidance audit — fix drift, prune 21.5k lines, consolidate tests/ onto AGENTS.md convention #7797's reference renames.ironclaw_sandbox::sandbox_process::tests::test_constructor_works_without_tokio_runtime) is/var/run/docker.sockabsence on the dev machine, crate byte-identical to main. The coverage-ratchet and WebUI-E2E pre-push lanes were skipped via their documented env switches for the machine-environment reasons above; PR CI re-runs everything with Docker.Review findings — verified, disposition pending
Four reviewers (Codex, CodeRabbit, IronLoop, approach-audit) raised 17 inline findings; three issues were flagged independently by two reviewers each. All were re-verified against live code before any action. Fixed in this PR:
Finalizedno-op guard was too broad (CodeRabbit, Major).mark_message_submitted's D14 guard checkedstatusonly, so any finalized row —Assistant,ToolResultReference,CapabilityDisplayPreview— silently succeeded where it previously returnedInvalidMessageTransition. Confirmed subagent-result rows are writtenMessageKind::System(filesystem_service.rs:2201,in_memory.rs:355), narrowed the guard to that kind in both backends, and extendeda_result_row_is_refused_by_the_steering_ladderto pin the negative half. Red first: the new assertion failed on both backends before the fix. 23/23 green.Deserialization, matching the unbounded siblingquery_indexed_collectioninstead of returning a short read. Plus libSQL parity coverage and the previously untestedlimit == 0/dependent_process_id/include_closedbranches.dependent_process_idfiltering — a real bug in this PR's own diff, found by writing the requested coverage. The bounded path addedeq_text("dependent_id", ..)as an index-level equality filter, butdependent_idis the canonical index's sort key.ordered_query_prefix_values(index.rs:675-682) requires the filter's equality-key set to equal exactly the index keys preceding the sort key — herelineage_scope_keyalone — so any bounded query narrowed to onedependent_process_idreturnedFilesystemError::Unsupportedinstead of results. Latent, not live: thequery()builder always passeslimit: None(unbounded path) andlist_background_for_threadpassesdependent_process_id: None, so no current caller combines the two — but the trap was live for the next one. Fixed by moving that predicate to the same in-memory per-page filter asgroup_ref/include_closed, the pattern the function's own over-fetch comment already documents. This is a root-cause fix inside this PR's diff, not scope creep; it was undiscoverable without the branch coverage the review asked for.f0c0b6536shrankresolver.rs2141→1535 lines without updating two line-referenced exemptions. Design: Secure Prompt-Based Skills System #38 pointed past EOF (the CI failure); chore: release v0.1.2 #55 silently pointed at unrelated code. Repointed to 1427 and 853 — same statements, verified in both revisions.Verified open findings (not fixed here):
recover_scopehas no startup caller; onlyfinish_spawnreaches it lazily. §4.2's boot-pass trigger undelivered.boot_recovery.rs:106,subagent_spawn_port.rs:1000check_scope_recovereddiscards the failure report and returnsOk(());ScopeRecoveryInProgressis never constructed in production despitefinish_spawnhandling it.boot_recovery.rs:106-112SubagentSettledasRejectedBusy; the closed edge leaves no sweep obligation. Asymmetric with theactivatepath.resolver.rs:727-741,input_queue.rs:516activateare not atomic;ThreadBusyparks atResultAppendedwith no guaranteed next drive. Largely subsumed by A.resolver.rs:826-830group_ref/closedandlineage_scope_keyomitsthread_id, so each run start scans the whole lineage partition — O(history), and the common (<32 open children) case triggers it.keys.rs:76-85,262,rows.rs:915-990after: Nonehardcoded; sort key is a random v4ProcessId. 32+ open children can starve aResultAppendededge indefinitely.resolver.rs:1091-1135,store.rs:349activate_parked_parentdropsresolved_run_profile.profile_version; no version-keyed registry exists.resume_turnpins by never re-resolving; this path re-requests by ID only.resolver.rs:780-797,resolver.rs:100-127C2 is the one to weigh before merge: it is a liveness defect, and the existing test
sweep_caps_at_max_queued_inputs_per_run_leaving_the_remainder_unclosedonly exercises the all-ResultAppendedcase, so it does not cover the mixed-state scenario that starves.Review round 2 — fixes landed
The merge-gating findings from review round 1 are now resolved on
bf012b08b8:mainsynthetic-merge budget gates pass without raising a ceiling.check_scope_recoverednow returnsScopeRecoveryInProgresswhen any recovery edge fails, activating the retry contract thatfinish_spawnalready handles.ResultAppendedafter queue acceptance. A typed, durable queue ack effect recordsAttentionOutcome::Queuedand closes only after the parent actually acknowledges the input; failed effects survive rehydration and retry, while terminal rejection of an unconsumed input leaves the edge recoverable.bg:{thread_id}rows, and deployment remains gated on slice 2a fleet-wide.ResolvedRunProfilesnapshot into the new run. Human activation cannot supply this internal snapshot, and snapshot-plus-hint requests fail closed.InvalidRequest; legacy both-Nonebehavior is unchanged.Still deliberately deferred: the actual cross-scope startup recovery pass (roadmapped R4; no bounded cross-scope query exists yet), composed-runtime test decomposition/wiring coverage, and the cosmetic large-test split.
ThreadBusyremains recoverable through the durableResultAppendedobligation and is subsumed by startup recovery.Current local evidence: process contracts 76/76; loop-host 707 unit plus integration suites; turns 119 unit plus contract suites; await-edge runner tests 39/39;
reborn_integration_subagent_await_edge7/7; architecture suite green; touched-crate all-features clippy with-D warningsgreen; formatting, diff check, composition budget, and changed-coverage manifest green. The full runner invocation in the managed macOS workspace has seven unrelated trace-capture fixture failures because it cannot write/Users/henry/.ironclaw; the same runner suite was green in the Linux worker checkout.