Why: F13 - the squad factory read the default account with an empty
project, pairing the run user's model name with another account's
endpoint and credentials; direct and squad paths disagreed on
reasoning split and route contract.
Evidence: app/runtime/squadadapter tests pass (verify-u10b.json);
run-scoped snapshot, project override, profile override and
fail-closed cases added with synthetic keys.
Impact: squad execution now uses the same effective-config rules as
the direct path; default setups unchanged.
Refs: feature/agent-stack-audit-remediation-b1 U10
Why: Compiled workflow critics could resend a prior prompt output after document duty or publication changed across separate model guards.
Evidence: RED cross-guard revocation and retry tests; go test ./... -count=1 and targeted go test -race passed locally before commit.
Impact: Bind materialized prompt bytes to the engine step attempt and responded model receipt; recheck current project sources and epochs before judging, failing closed for unproven or ambiguous output.
Refs: RDM two-trees stage5 W6; stage6 X1 public extension request; W6 independent review P1.
Why: Project work currently reaches model calls without current authorized project facts or a persisted input receipt.
Evidence: SELF go test ./... -count=1, targeted go test -race for W6 paths, go vet ./..., and CGO_ENABLED=0 go build ./cmd/agent-system passed on this change set.
Impact: Add optional X1 interfaces, trusted persisted work-task binding, request-scoped context injection, evidence reauthorization, and attempted/responded/unknown manifests. Existing non-project behavior stays available.
Refs: TT-C01 TT-C02 TT-C03 TT-C04; stage5 W6; Dev stage6 X1 public extension request r1
Why: Real runs were fully serial: the direct path never set the kernel's
parallel tool mode, delegate_task handed the parent only the child's
160-char summary (the full text was dropped), MiniMax streamed its
reasoning inside content <think> blocks, and the EXT-16 sandbox hid
~/.local so python-docx/openpyxl/pptx could not even import. All four
were measured defects (F1/F2/F3/F5) in the delegation/routing proposal.
Why: Serial-only mutual exclusion is not enough for order-sensitive
tools - the card-stream test failed with out-of-order appends - so the
ordering moved into the kernel (SerialTools partition, Agent-Native
#44); process events pair by CallID (#42) and tool results write back
through the injected call context (#43).
Evidence: go test ./... green, including new regression anchors:
TestDelegateToolReturnsFullText, TestToolEventsPairByCallID,
TestToolExecModeAndSerialSet, TestOpenLLMClientReasoningSplitAuto,
TestSandboxArgvDepsLayer, TestExecEnvJoinsPythonPath.
Impact: Direct runs now execute independent same-turn calls
(searches, reads, delegate_task, review_findings) concurrently by
default (runtime.parallelTools=false restores sequential); card flow,
plans, workflows, exec primitives and file edits keep model-declared
order. delegate_task returns the capped full child text. MiniMax-*
models get reasoning_split=true so thinking streams via
reasoning_content. --exec-deps-dir/AGENT_SYSTEM_EXEC_DEPS_DIR mounts a
read-only dependency layer into the sandbox and merges PYTHONPATH.
Bumps deps/agent-native to c348441.
Refs: proposal 2026-10-10-agent-delegation-routing-sandbox.md (E1,
F1-F5); Agent-Native #42/#43/#44; Dev task feature/agent-e1-parallel-fixes.
Why: Real-run before/after evidence (phase01 card) showed later turns never
re-read the uploaded source (0 original reads in plan-followup) because the
attachment only existed in the current turn's injection and the context window
hard default was 32000 chars - a 25k-char transcript tripped the clear-on-first
request, replacing old tool results with a pointer the model has no tool to
follow. MiniMax is an interleaved-thinking model whose docs require <think>
blocks in assistant history; dropping them degrades later turns.
Evidence: SELF - new tests TestThinkReplayWrapsAssistantHistory,
TestContextWindowScalesFromTokens, TestThinkReplayEnabled,
TestPersistInputTextsAndListWorkspaceInputs; go test ./internal/... passes;
live before/after comparison on the golden task set recorded on the phase02
task card per the new policy clause.
Impact: models.chat.contextWindow/outputReserve/contextBuffer (tokens,
defaults 128k/16k/4k) drive the in-run clear threshold, converted to chars;
cleared tool results spill to <sandbox>/.agent/results with readable paths;
attachment parse text persists as inputs/<name>.md and the env section lists
all workspace inputs every turn; context.thinkReplay (auto|on|off, auto =
MiniMax) replays thinking blocks into request-side assistant history only.
Why: Q3 WP2 retires the SpawnSubagent-compression execution path: all
WorkflowDef execution now goes through the wfcompile compiled graph, and
squad steps run on the agent-native kernel backend instead of the
agent-system step backend.
Evidence: runtime-level P4 parity tests (workflow_compiled_test.go):
registered branch lookup/errors, planned branch confirmation gate +
dynamic 8-step cap fail-closed before any HITL, model script switch
default-off, missing-slot HITL collection with compile-time rendering,
judge stream routed to the configured lightweight model (nil = fail-closed
verifier-unavailable). squadadapter TestOrchestrateRunsOnKernelStub:
four-phase skeleton runs end-to-end on the kernel stub (write_file
materialization, seeded skills, exec allowlist). server TestSquadOrchestration
reworked: kernel steps run in-process (no subagent child runs). Full
backend suite green; wfcompile/squadadapter/runmgr green with -race
(pre-existing llm_test fake race on main recorded as debt, CI does not
gate -race).
Impact: DELETED runtime/workflow.go + workflow_script.go (legacy step loop,
critic, script host) and their tests; squadadapter stepBackend
'agent-system' + profileForRole deleted; BuildBackends exported and
registers only agent-native; Orchestrate DefaultBackend -> agent-native;
builtin roles declare agent-native with write_file added to allowlists and
writer run_shell -> run_command (kernel tool name); runmgr default workflow
runner -> CompiledWorkflowRunner; mock #workflow demo runs compiled
(host-only steps). Model script branch keeps the single script-level
confirmation (no extra plan confirmation), matching legacy.
Refs: Q3 plan WP2 (2026-10-07-agent-stack-q2q3-plans.md); task card
.task/feature-agent-stack-q3.md
weichen
agent-exec-transport