Run State Management

You own FlowRun durability. Every long-running flow command (start, debug, address, review, pr, merge, release) writes a .flow/runs/<id>/run.yaml at entry, appends an activity record at every phase boundary, and updates state.status on completion. Without this skill, runs are session-scoped and die when the conversation ends — defeating the resumability promise of the v3 runtime layer.

Iron Law

No phase transitions without an activity write. `state.completed_activities[]` is the source of truth for `/flow:resume` — a missing activity means the resume command will skip ahead and the user loses work.

Relationship to existing skills

This skill wraps autonomous-workflow (which encodes the phase structure of /flow:start and friends). It adds:

• Durable file-backed state (vs. session-only TODO tracking)
• Phase-boundary checkpointing (so resume can pick up mid-workflow)
• Audit trail via .flow/runs/<id>/events.jsonl

If autonomous-workflow says "next phase is VERIFY," this skill writes the corresponding activity YAML and updates state.current_phase.

Inputs

The invoking command MUST pass:

1. Workflow id — start-issue | debug | address-pr | review-pr | merge-pr | release (matches the workflow YAML filenames under plugins/flow/workflows/).
2. Run id — typically <ISO-8601-compact-timestamp>-<target-slug> (e.g., 2026-05-20T143000Z-issue-42).
3. Context — repo, branch, issue/pr number, linked journal path, linked goal id (when available).
4. Phase — initial phase id (preflight, explore, plan, code, verify).

Outputs

1. .flow/runs/<id>/run.yaml — FlowRun document conforming to schemas/v1/run.schema.json.
2. .flow/runs/<id>/activities/<NNN>-<name>.yaml — activity records written per phase boundary.
3. .flow/runs/<id>/events.jsonl — line-per-event ledger.
4. workflow-run artifact appended to linked decision journal.

Workflow

Step 1: Create the FlowRun

When the command begins:

# Compose the FlowRun YAML
cat > /tmp/run.yaml <<EOF
apiVersion: flow.synapti.ai/v1
kind: FlowRun
metadata:
  id: ${RUN_ID}
  workflow: ${WORKFLOW_ID}
  workflow_version: 1
  goal: ${GOAL_ID:-null}
  created_at: ${NOW}
context:
  repo: ${REPO}
  branch: ${BRANCH}
  issue: ${ISSUE:-null}
  pr: ${PR:-null}
  journal: ${JOURNAL}
state:
  status: active
  current_phase: ${INITIAL_PHASE}
  current_activity: null
  completed_activities: []
  blocked_reason: null
limits:
  max_iterations: 10
  max_runtime_minutes: null
events:
  - at: ${NOW}
    type: run_started
EOF

Write to .flow/runs/<id>/run.yaml via direct file write (no atomic helper needed for the initial creation — race-free because the directory doesn't yet exist).

Append workflow-run artifact to the linked journal:

bin/journal-record.sh --issue ${N} --type workflow-run \
  --metadata workflow=${WORKFLOW_ID} \
  --metadata run_id=${RUN_ID} \
  --metadata status=active

Step 2: Record activity at every phase boundary

At the end of each phase (or significant sub-step within a phase), compose a FlowActivity YAML and invoke bin/flow-record-activity.sh:

ACT_FILE=$(mktemp)
cat > "${ACT_FILE}" <<EOF
apiVersion: flow.synapti.ai/v1
kind: FlowActivity
metadata:
  id: ${ACTIVITY_NAME}
  run_id: ${RUN_ID}
  workflow: ${WORKFLOW_ID}
  phase: ${PHASE}
activity:
  type: ${TYPE}              # bash | skill | agent | task | gate | evaluation
  name: '${HUMAN_NAME}'
  status: passed             # or running | failed | skipped | blocked
  started_at: ${START_TIME}
  completed_at: ${NOW}
outputs:
  evidence_refs: [${EVIDENCE_REF_LIST}]
  files_changed: [${FILES_LIST}]
  command_exit_code: ${EXIT_CODE}
result:
  summary: '${SUMMARY}'
  confidence: ${high|medium|low}
EOF

bin/flow-record-activity.sh --run-id ${RUN_ID} --activity-file "${ACT_FILE}"
rm "${ACT_FILE}"

The helper:

• Assigns the next sequence number (001-, 002-, ...)
• Validates against schemas/v1/activity.schema.json
• Writes atomically (O_NOFOLLOW + flock + tempfile+rename)
• Appends one line to events.jsonl

Step 3: Update FlowRun state.current_*

After each activity write, update run.yaml to reflect the new phase/activity:

state:
  status: active
  current_phase: ${NEW_PHASE}      # advance if at phase boundary
  current_activity: ${NEXT_ACTIVITY_ID}
  completed_activities:
    - ${PRIOR_ACTIVITY_IDS}
    - ${JUST_RECORDED_ACTIVITY_ID}   # append the one we just wrote

This update is atomic via the same helper pattern: direct read-merge-write through Python with _journal_atomic.py.acquire_lock(run.yaml.lock).

Step 4: Transition to terminal state

When the command completes (success, failure, or cancellation):

state:
  status: completed   # or failed, cancelled, blocked
  current_phase: <last>
  current_activity: <last>
  completed_activities: [...]
  blocked_reason: null   # set when status is blocked

Update the workflow-run journal artifact with the final status (via a second journal-record.sh call with the updated metadata).

Step 5: SessionEnd persistence

When SessionEnd fires (separate hook: session-end-state.sh), if an active FlowRun exists:

• Append an event: {type: session_end, at: <now>}
• Set state.blocked_reason: "session ended" if no terminal transition happened
• Print a one-line notice: Active FlowRun <id> persisted; use /flow:resume to continue

Phase order table

The machine-readable equivalents live at plugins/flow/workflows/<id>.workflow.yaml.

Anti-patterns

• ❌ Writing run.yaml outside the helper or direct create — concurrent updates need flock.
• ❌ Updating state.current_phase without writing an activity — phases without activities can't be resumed.
• ❌ Marking state.status: completed while completed_activities[] is empty — implausible; the run did nothing.
• ❌ Reading from events.jsonl and trusting partial lines — readers MUST skip un-parseable trailing lines (atomicity at write time, tolerance at read time).
• ❌ Auto-resuming a blocked run without checking why it was blocked — surface the blocker first.

Reuse map

• plugins/flow/skills/autonomous-workflow/SKILL.md — phase structure source of truth.
• plugins/flow/bin/flow-record-activity.sh — atomic activity writer.
• plugins/flow/bin/_journal_atomic.py — exposed acquire_lock, _atomic_write for run.yaml updates.
• plugins/flow/schemas/v1/run.schema.json — run document schema.
• plugins/flow/schemas/v1/activity.schema.json — activity document schema.
• plugins/flow/references/decision-journal-schema.md — workflow-run and activity-completed artifact-type rows.