v0.6.0 — workflow accuracy + harness upgrade (11 items)

Highlights

Eleven coordinated changes across agent prompts and the orchestrator so Symphony ticket outcomes are predictable and the system is observable. Plan and live-demo verification log live at docs/improvements/workflow-v0.5.2.md.

Prompt contracts (agent-visible)

• Plan emits ## Acceptance Tests and ## Done Signals; QA scores them via ## AC Scorecard.
• Rewinds receive SYMPHONY_REWIND_SCOPE JSON env and scope edits to flagged files (## Scope Expansion for justified spillover).
• Explore emits a scored reuse-inventory.md; Plan candidate set is an explicit Markdown table with reuse_from and observability columns.
• Review emits a 7-row ## Security Audit; any fail auto-promotes to CRITICAL.
• Wiki entries record **Observability hooks:** under ## Technical Reference.

Harness (orchestrator + hooks)

• Orchestrator parses ## Touched Files at dispatch and auto-Blocks overlapping candidates with a ## Conflict section.
• BaseAgentBackend.is_progress_event lifts the meta-event stall filter into one place (Claude + Codex override, Pi + Gemini inherit the default).
• Per-state EMA of completion tokens persists to .symphony/token_ema.json; dispatch injects SYMPHONY_TOKEN_EMA and SYMPHONY_TOKEN_BUDGET; the EMA captures the source state at worker_turn_started.
• after_run prefixes the wip commit with [no-test] when prod-code diff lacks a paired test; Review scans the marker and promotes each to HIGH. Docs / LICENSE / README carve-out included.
• 200-line after_create heredoc extracted to scripts/symphony-setup-worktree.sh; hook is a one-liner.
• New symphony wiki-sweep CLI scans docs/llm-wiki/ for duplicate / orphan / stale rows. Orchestrator runs it every Nth Done (default wiki.sweep_every_n: 10); counter persists across restarts.

Bug fixes

• after_run YAML literal block fixed (replaced IFS='\n' with a POSIX printf trick).
• C1 path-with-spaces regex hardened (backtick + plain forms, lenient trailing content).
• C5 done counter persistence.
• Test compat with Python 3.10 (asyncio.Task.cancelling is 3.11+).

Included Commits

PR #27 was squash-merged into main as commit 3b86c7f. Original branch history (for traceability):

• ba9273c docs: plan 11-item workflow accuracy + harness upgrade
• 61f5a2d feat(workflow): accuracy + harness upgrade (v0.6.0)
• 86ca62b chore(release): v0.6.0
• 8be3d26 fix(workflow): address code-review HIGH + MEDIUM items
• 1e82d70 fix(workflow): close gaps surfaced by live demo
• aa31f3b chore: clarify wiki_sweep imports
• 123800c docs: record post-fix live re-verification + out-of-scope findings
• 85b2241 fix(tests): Task.cancelling() is 3.11+, gate the call on Python 3.10

Verification

• python -m pytest -q passed: 519 passed, 6 skipped (Python 3.10 / 3.11 / 3.12 CI green).
• python -c "import symphony; print(symphony.__version__)" returned 0.6.0.
• Live agent demo with max_turns=4, full Todo→Review pipeline:
  • claude backend ran all 4 turns (Explore→Plan→In Progress→Review), emitted exact 7-row ## Security Audit, full ## Acceptance Tests + ## Done Signals + ## AC Scorecard shape, and wrote reuse-inventory.md + implementation-plan.md + work/feature.md under <workspace>/docs/<id>/.
  • codex backend ran the same pipeline through ## Implementation (Review-stage board write blocked by a pre-existing codex sandbox issue — filed separately as #31).
• Live agent re-run with max_turns=2 after addressing run-1 gaps confirmed every fix lands on both backends: C1 regex now parses real-world (new) annotations, C3 EMA keys (explore, plan) attribute under the source state, and the A3 Plan candidate table emits with reuse_from + observability columns.

Follow-ups (filed, not in this release)

• #28 C1: conflict pre-check skips retry-queue entries
• #29 C3: per-subprocess env= isolation under max_concurrent_agents > 1
• #30 C3/C5: Windows rename atomicity on concurrent reader hold
• #31 Codex sandbox rejects writes to symlinked board files (pre-existing)
• #32 EMA persistence: last-writer-wins when multiple orchestrators share .symphony/