panayiotism/claude-harness/flow

Flow - Unified Development Workflow

The single command for all development workflows. Handles the entire feature lifecycle from creation to merge.

Arguments: $ARGUMENTS

Session ID: ${CLAUDE_SESSION_ID} — session state lives in .claude-harness/sessions/${CLAUDE_SESSION_ID}/.

Overview

All workflows run through this single entry point with flags:

/claude-harness:flow "Add dark mode support"           # Standard workflow
/claude-harness:flow --autonomous                      # Batch process all features
/claude-harness:flow --plan-only "Big refactor"        # Plan only, implement later
/claude-harness:flow --team "Add user login"           # ATDD with Agent Team (3 teammates)

Lifecycle: Context -> Creation -> [Subagent Delegation] -> Planning -> Implementation -> Verification -> Checkpoint -> Merge -> [Result Processing]

Context Isolation: In standard mode, Phases 3-6 run inside an isolated subagent (via the Agent tool, subagent type claude-harness:harness-implementer). The main context stays clean after feature completion -- no /clear needed between features.

ATDD Team Lifecycle (with --team): Context -> Creation (with Gherkin criteria) -> [Subagent Delegation] -> Planning -> Team Spawn -> Acceptance Tests (RED) -> Implementation (GREEN) -> Review -> Verify -> Checkpoint -> Merge

Retry Policy

Each delegated subagent gets at most 4 implementation attempts. If it escalates, the orchestrator spawns a fresh subagent (clean context) seeded with the failure summary from the previous delegation -- up to 3 delegations per feature (12 attempts total). A fresh context with distilled failure knowledge outperforms a degraded context grinding through attempt 15.

Phase 0.1: Argument Parsing

1. Parse arguments:

• Empty: Show interactive menu for feature selection
• Matches feature-\d+: Resume existing feature
• Matches fix-feature-\d+-\d+: Resume existing fix
• --fix <feature-id> "description": Create fix linked to feature
• Otherwise: Create new feature from description

1. Parse options:

• --no-merge: Skip merge phase (stop at checkpoint)
• --quick: Implement directly without planning phase
• --plan-only: Stop after Phase 3. Resume later with feature ID.
• --autonomous: Outer loop -- iterate all active features
• --team: Use Agent Teams for ATDD implementation (requires agentTeams.enabled in config.json)

1. Mode validation:

• --autonomous: Compatible with --no-merge, --quick, and --team. Proceed to Autonomous Wrapper.
• --plan-only: Proceeds through Phases 0-3 then STOPS. Incompatible with --team.
• --team: Compatible with --autonomous, --no-merge. Incompatible with --quick and --plan-only.

Phase 0.2: Team Preflight (if --team)

Read ${CLAUDE_SKILL_DIR}/references/team-atdd.md for full Agent Teams ATDD details.

• Read .claude-harness/config.json agentTeams section: verify enabled is true. If not: display "Enable agentTeams in config.json" and STOP.
• Cache team config: defaultTeamSize, roles, requirePlanApproval, teammateModel

Autonomous Wrapper (if --autonomous)

When --autonomous is set, the flow operates as a lean orchestrator loop that iterates all active features. Each feature is executed in an isolated subagent context via the Agent tool.

Read ${CLAUDE_SKILL_DIR}/references/autonomous-wrapper.md for the full autonomous orchestration phases (A.1 through A.7).

Tip: for fully unattended batches, run the session as claude --permission-mode acceptEdits -- the PermissionRequest hook then only has to arbitrate the rare dangerous operations.

Context Isolation (All Modes)

Both standard and autonomous modes delegate feature implementation to the claude-harness:harness-implementer subagent via the Agent tool (fall back to general-purpose if the type is unavailable). This provides:

• Fresh context window: Each feature starts with zero accumulated context
• Clean token budget: No context waste from previous features
• Contained failures: A failing feature's debugging context does not pollute the next feature
• Memory continuity: Orchestrator persists memory updates between features
• Team containment: When --team is used, the Agent Team lifecycle is fully contained within the subagent
• No manual /clear needed: After feature completion, the main context is clean

Standard mode (Phase 2.5): Single feature delegated after creation. Autonomous mode (Phase A.4): Multiple features delegated in a loop.

Phase 1: Context Compilation (Auto-Start)

1. Set paths:

• FEATURES_FILE=".claude-harness/features/active.json"
• MEMORY_DIR=".claude-harness/memory/"
• ARCHIVE_FILE=".claude-harness/features/archive.json"

1. GitHub repo: use the cached owner/repo from the session context (injected at SessionStart). Only if absent, parse once from git remote get-url origin.

1. Read IN PARALLEL (single message, multiple Read calls): active.json plus the memory bundle index files ${MEMORY_DIR}/failures/index.md, ${MEMORY_DIR}/successes/index.md, ${MEMORY_DIR}/decisions/index.md, ${MEMORY_DIR}/rules/index.md (then read only the relevant concept files)

1. Compile working context to .claude-harness/sessions/${CLAUDE_SESSION_ID}/context.json:

``json { "version": 3, "computedAt": "{ISO}", "sessionId": "${CLAUDE_SESSION_ID}", "github": { "owner": "{owner}", "repo": "{repo}" }, "activeFeature": null, "relevantMemory": { "recentDecisions": [], "projectPatterns": [], "avoidApproaches": [], "learnedRules": [] } } ``

1. Display context summary: memory stats, GitHub info.

Phase 2: Feature Creation

Use cached GitHub owner/repo from Phase 1.

1. Generate feature ID: Read active.json, find highest ID, generate next feature-XXX.

1. Define acceptance criteria (ATDD -- always on):

• If feature has existing acceptanceCriteria (from PRD breakdown): use those
• Otherwise: generate Gherkin acceptance criteria from feature description
• Format as structured Gherkin: { "scenario", "given", "when", "then" }
• Aim for 2-5 scenarios covering: happy path, error cases, edge cases

1. Create GitHub Issue via gh issue create --title "{name}" --label "feature,claude-harness,flow" --body "{Problem/Solution/Acceptance Criteria (Gherkin)/Verification}". STOP if it fails (check gh auth status).

1. Create and checkout branch locally: git checkout -b feature/feature-XXX (no API round-trip; the branch reaches the remote on first git push -u origin feature/feature-XXX).

1. Create feature entry in active.json: id, name, status "in_progress", acceptanceCriteria, github refs, verificationCommands, maxAttempts 12.

Phase 2.5: Context Isolation (Standard Mode)

Skip this phase if --plan-only or --autonomous.

After feature creation, delegate the remaining lifecycle to an isolated subagent for clean context. Read ${CLAUDE_SKILL_DIR}/references/implementation.md for the delegation prompt format and result processing logic.

Summary:

1. Compile subagent prompt (feature entry, verification commands, memory, GitHub info, flags, result file path)
2. Delegate via Agent tool with subagent_type="claude-harness:harness-implementer"
3. Subagent runs Phases 3-6 autonomously in fresh context and writes its result file
4. Read the result file (fallback: parse RESULT: from the subagent's reply)
5. Process result: archive on success, persist memory, clean up branches; on escalated, re-delegate a fresh subagent (max 3 delegations)
6. Skip to Phase 7

Phase 3: Planning (unless --quick)

Note: In standard mode, this phase runs inside the delegated subagent. It only runs inline when --plan-only is set.

1. Query procedural memory: Check past failures/successes. Warn if planned approach matches past failure.
2. Analyze requirements: Break down, identify files, calculate impact.
3. Generate plan: Store in feature entry or session context.

Phase 3.5: Create Task Breakdown

Uses Claude Code's native task tracking (TaskCreate/TaskUpdate) for visual progress.

• Create task chain (6 tasks): Research -> Plan -> Implement -> Verify -> Accept -> Checkpoint
• Each blocked by previous. Store IDs in loop-state.
• Mark Task 1 as in_progress.

Phase 3.7: Team Roster (if --team)

Read ${CLAUDE_SKILL_DIR}/references/team-atdd.md for full team roster and ATDD spawn prompts.

Summary: Prepare team structure with tester, implementer, reviewer roles. Prepare ATDD spawn prompts for each role.

Phase 3.8: Plan-Only Gate (if --plan-only)

If --plan-only: display plan summary (feature ID, issue, branch) with resume command and EXIT.

Phase 4: Implementation

Read ${CLAUDE_SKILL_DIR}/references/implementation.md for full implementation details including loop state schema, standard vs team implementation, and verification.

Standard (no --team):

1. Branch verification: STOP if on main/master
2. Initialize loop state (canonical Loop-State Schema v9)
3. Implement feature following ATDD: acceptance tests first (RED), implement to pass (GREEN), refactor
4. Run verification commands after implementation
5. On failure: record a Failure concept file to ${MEMORY_DIR}/failures/, increment attempts, retry with a different approach (max 4 per delegation)

Team (--team):

Read ${CLAUDE_SKILL_DIR}/references/team-atdd.md for full ATDD team implementation including team creation, monitoring, shutdown gate, and cleanup.

Phase 4.1: Verification and Memory Updates

• Fail: write a Failure concept to ${MEMORY_DIR}/failures/ (+ index.md line), increment attempts, retry
• Pass: write a Success concept to ${MEMORY_DIR}/successes/ (+ index.md line), mark loop "completed", update tasks
• Escalation (max attempts): show summary, offer options. Do NOT checkpoint.

Phase 5: Auto-Checkpoint

Triggers when verification passes. Read ${CLAUDE_SKILL_DIR}/references/checkpoint.md for detailed checkpoint phases.

Summary:

1. Update .claude-harness/claude-progress.json with session summary
2. Compile session briefing to .claude-harness/session-briefing.md
3. Persist to all memory layers (episodic, semantic, procedural)
4. Auto-reflect on user corrections
5. Persist orchestration memory
6. Commit, push (git push -u origin {branch}), create/update PR via gh pr create / gh pr edit

Phase 6: Auto-Merge (unless --no-merge)

Only proceeds if PR approved and CI passes.

1. Check PR status: gh pr view {number} --json state,mergeable,reviewDecision,statusCheckRollup
2. If ready: gh pr merge {number} --squash --delete-branch, close issue if not auto-closed (gh issue close {issueNumber}), update status to "passing", archive feature
3. If needs review: display PR URL with resume/merge commands
4. Final cleanup: switch to main, pull, delete local feature branch (git branch -d), prune refs, clear loop state

Phase 7: Completion Report

1. Clean up tasks (all 6 should be completed).
2. Display final status: feature ID, description, issue (closed), PR (merged), tasks 6/6, attempts, duration, memory updates.

Resume Behavior

• /claude-harness:flow feature-XXX:
• Check interrupt recovery (priority): Read .claude-harness/sessions/.recovery/interrupted.json
• If marker matches: display recovery banner, present options (FRESH APPROACH / RETRY SAME / RESET)
• In autonomous: always FRESH APPROACH
• If no marker: resume from feature status: pending -> Phase 3, in_progress -> Phase 4, needs_review -> Phase 6, passing -> already complete

Error Handling