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epicsagasepicsagas/epic-harness/skills/orbit/SKILL.md

orbit

Skill20 starsChanged 2 months agoApache-2.0View on GitHub

State-persisted autonomous pipeline: spec → go → audit → eval → ship → evolve in one command. Auto-detects direct/council/interactive mode. Crash-recoverable via PIPELINE-*.json. Hands-off until PR.

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We split this skill into the rules it gives an agent

20 rules. 0 are common, 7 are distinctive, and 13 are very specific to this project.

  • 0

    Common

    Most of the 5 edited versions we read keep these.

  • 7

    Distinctive

    This author's own choices. Worth a look.

  • 13

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    CRITICAL: Run HARNESS_DIR=$(epic path) first.

    line 8
  2. Very specific:

    Read it. Verify phase matches where you left off

    line 18
  3. Very specific:

    Conflict resolution (crash-mid-update): If phase_history contains an entry for the current phase with a completed timestamp, treat that …

    line 20
  4. Very specific:

    Worktree recovery: If worktree_name is set in pipeline state:

    line 22
  5. Very specific:

    Check if worktree still exists: git worktree list | grep "{worktree_name}"

    line 23
  6. Very specific:

    If exists: cd into the worktree path to continue work

    line 24
  7. Very specific:

    If not found: worktree was cleaned up externally — abort orbit with warning, set "status": "aborted"

    line 25
  8. Very specific:

    If no file with "status": "running" exists, orbit was not started or has completed.

    line 27
  9. Very specific:

    Crash recovery: If updated_at is older than 45 minutes and the pipeline is in status: running, assume a crash occurred.

    line 29
  10. Very specific:

    Check for PRD/requirements docs: ls {project}/PRD*.md {project}/docs/PRD*.md {project}/requirements*.md 2>/dev/null

    line 81
  11. Distinctive:

    Read the user's request + any existing docs (PRD, README, AGENTS.md)

    line 93
  12. Distinctive:

    Git preflight: verify clean working tree and not on detached HEAD:

    line 121
  13. Distinctive:

    Worktree isolation: Create an isolated git worktree:

    line 126
  14. Distinctive:

    Check for eval config — eval is active if ANY of these exist:

    line 157
  15. Very specific:

    If eval is active, run epic eval --json via the eval skill

    line 161
  16. Distinctive:

    If no eval config and no benchmarks detected, skip this step entirely

    line 166
  17. Distinctive:

    Gate: verify PASS audit report exists

    line 170
  18. Distinctive:

    Run the evolution engine to analyze this session and generate/improve skills.

    line 193
  19. Very specific:

    If $HARNESS_DIR/projects/{slug}/pending_synth.jsonl has records with status: "pending", synthesize each — launch one subagent per manifest …

    line 201
  20. Very specific:

    Update pipeline state: "phase": "evolve", "status": "complete", then run epic orbit unlock.

    line 222

“Common” is measured: kept by at least 6 in 10 of the 5 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

/orbit — Complete Orbit

CRITICAL: Run HARNESS_DIR=$(epic path) first. NEVER use .harness/ in the project directory.

You are entering Orbit mode — the full autonomous pipeline from spec to PR in one shot.

Phase Recovery Protocol

At the start of every response during an active orbit:

  1. Run ls $HARNESS_DIR/orbit/PIPELINE-*.json 2>/dev/null
  2. Find the file with "status": "running"
  3. Read it. Verify phase matches where you left off
  4. If phase is ahead of where you think you are, trust the file — you may have compacted
  5. Conflict resolution (crash-mid-update): If phase_history contains an entry for the current phase with a completed timestamp, treat that phase as done and advance to the next phase — phase_history wins over the phase field when they disagree.
  6. Resume from the resolved phase. Do NOT re-ask mode selection, re-run spec, or re-discover
  7. Worktree recovery: If worktree_name is set in pipeline state:
    • Check if worktree still exists: git worktree list | grep "{worktree_name}"
    • If exists: cd into the worktree path to continue work
    • If not found: worktree was cleaned up externally — abort orbit with warning, set "status": "aborted"

If no file with "status": "running" exists, orbit was not started or has completed. Do not invent one.

Crash recovery: If updated_at is older than 45 minutes and the pipeline is in status: running, assume a crash occurred. Read the state, determine the last completed phase from phase_history (rule 5 above applies), and resume from there. Report the recovery to the user.

Step 0: Preflight

Concurrent-orbit guard — before starting, run:

epic orbit lock   # exit 1 + "another orbit is running" if one is active → STOP

On success you own the guard; run epic orbit unlock when the pipeline reaches a terminal state (complete/aborted). If a crashed orbit left the lock behind, lock reclaims it automatically once no PIPELINE-*.json is running.

Initialize pipeline state at $HARNESS_DIR/orbit/PIPELINE-{timestamp}.json:

{
  "id": "{timestamp}",
  "mode": null,
  "phase": "auto_detect",
  "status": "running",
  "spec_file": null,
  "goal_slug": null,
  "branch": null,
  "worktree_name": null,
  "original_cwd": null,
  "audit_fail_count": 0,
  "max_retries": 3,
  "audit_report": null,
  "pr_url": null,
  "deadline": "{ISO-8601, now + 30 minutes}",
  "started_at": "{ISO-8601}",
  "updated_at": "{ISO-8601}",
  "phase_history": []
}

Step 1: Auto-Detect Mode

DO NOT ask the user for mode selection. Auto-detect the best path:

Detection Logic

SignalModeReason
PRD / detailed requirements doc exists in projectcouncilRich input → council synthesizes best approach
User request is specific and actionable (clear goal, defined scope)directNo need for discovery — spec directly
User request is vague, unfocused, or "I want to..." without specificscouncilCouncil frames the problem better than guessing
User explicitly says "interactive" or "let me discover first"interactiveRespect explicit preference

Detection Process

  1. Check for PRD/requirements docs: ls {project}/PRD*.md {project}/docs/PRD*.md {project}/requirements*.md 2>/dev/null
  2. Evaluate user request clarity:
    • Specific: contains concrete feature descriptions, acceptance criteria, or technical constraints → direct
    • Vague: "build X", "improve Y", "add Z" without details → council
  3. Record detected mode in pipeline state ("mode": "direct|council|interactive")
  4. Report mode choice to user as a notification, not a question: "Orbit mode: {mode} (auto-detected)"
  5. Proceed immediately to the matching step below — do not wait for confirmation

Step 2A: Direct Mode (clear request → auto-spec)

Use when: Request is specific and actionable.

  1. Read the user's request + any existing docs (PRD, README, AGENTS.md)
  2. Generate spec directly at $HARNESS_DIR/specs/SPEC-{timestamp}.md, run the Readiness gate from skills/spec/SKILL.md (step 3) on it, settle every GAP: from the request and codebase yourself, record each as GAP: … → settled: … (assumption) under the spec's ## Readiness Gate, then write status: approved. If a gap cannot be settled without the user, downgrade to council mode instead of guessing.
  3. Record via epic mem add --title "Orbit: {mode} mode decision" --type decision --importance 0.9 --body "CONTEXT"
  4. Proceed immediately to Step 3 — no approval gate

Step 2B: Council Auto-Spec (complex/vague request → council)

Use when: PRD exists or request needs framing.

  1. Gather the user's request from conversation context
  2. Launch 4 parallel sub-agents (Architect, Skeptic, Pragmatist, Critic) — each receives ONLY the request + codebase context, NOT the full conversation (anti-anchoring)
  3. Synthesize: list agreement/disagreement, produce recommended approach
  4. Generate spec at $HARNESS_DIR/specs/SPEC-{timestamp}.md, run the Readiness gate (spec skill step 3), settle every GAP: from the council output and record each under ## Readiness Gate, then write status: approved
  5. Record via epic mem add --title "Orbit: council decision" --type decision --importance 0.9 --body "CONTEXT"
  6. Proceed immediately to Step 3 — no approval gate, no "orbit go"

Step 2C: Interactive Mode (explicit user choice only)

Use when: User explicitly requested interactive mode.

  1. Tell user to run /discover → /spec, then say "orbit go". STOP and wait.
  2. On resume: load latest SPEC-*.md with status: approved. Proceed to Step 3.

This mode is never auto-selected. It requires explicit user opt-in.

Step 3: Build (Go)

  1. Load spec, extract goal_slug
  2. Git preflight: verify clean working tree and not on detached HEAD:
    [ -z "$(git status --porcelain)" ] || (echo "ERROR: Dirty working tree or untracked files. Commit or stash first." && exit 1)
    git symbolic-ref -q HEAD || (echo "ERROR: Detached HEAD. Checkout a branch first." && exit 1)
  3. Worktree isolation: Create an isolated git worktree:
    git worktree add .harness/worktrees/orbit-{goal_slug} -b orbit-{goal_slug} origin/{default-branch}
    cd .harness/worktrees/orbit-{goal_slug}
    • .harness/worktrees/ is host-neutral. Do NOT use .claude/worktrees/ — it is meaningless on Codex and Antigravity.
    • Record worktree_name and original_cwd in pipeline state
  4. Plan tasks from Requirements (R1, R2...)
  5. Execute with sub-agents — TDD, debug on failure, verify before done
  6. Handle states: DONE / DONE_WITH_CONCERNS / NEEDS_CONTEXT / BLOCKED
  7. Integrate: full test suite, verify ACs

Step 4: Audit

  1. Gather scope via git diff --stat
  2. Classify changed files (API, Frontend, DB, Backend, Tests, Infra)
  3. Launch parallel sub-agents: Reviewer, Auditor, Test runner (+ scope-specific)
  4. Synthesize Audit Report: Quality/Security/Performance PASS/WARN/FAIL + Spec Coverage
  5. PRESERVE audit report in pipeline state audit_report field

Step 5: Verdict

  • All PASS + all AC verified → proceed to Eval (if eval.yaml exists) or Ship
  • WARN → log, auto-proceed
  • FAIL → increment audit_fail_count:
    • < 3: plan fixes from action items, execute, return to Step 4
    • ≥ 3: PAUSE — ask user "continue or abort?"

Step 5.5: Eval (optional — only if eval.yaml or benchmarks exist)

  1. Check for eval config — eval is active if ANY of these exist:
    • $HARNESS_DIR/eval/eval.yaml
    • benchmarks/baselines/latest.json in CWD (in-repo baseline)
    • benchmarks/eval_runner.py in CWD (auto-detected benchmark)
  2. If eval is active, run epic eval --json via the eval skill
  3. Eval PASS → proceed to Ship
  4. Eval FAIL (regression detected) → increment audit_fail_count:
    • < 3: plan fixes, execute, return to Step 4
    • ≥ 3: PAUSE — ask user "continue or abort?"
  5. If no eval config and no benchmarks detected, skip this step entirely

Step 6: Ship

  1. Gate: verify PASS audit report exists
  2. Integration verification — run directly in worktree:
    • Clean build artifacts first: cargo clean / npm run clean / equivalent
    • Full build from scratch · complete test suite · linter + formatter
    • Fail → STOP. Do NOT create PR.
  3. Git hygiene: conventional commits, rebase, squash fixups
  4. Create PR via gh pr create with spec + audit report in body
    • Record the URL in pipeline state as pr_url. epic orbit unlock warns when a pipeline reaches complete without it.
  5. CI watch — probe first, then watch:
    gh pr checks <PR_NUMBER> --json name,state
    • Checks exist → run gh pr checks <PR_NUMBER> --watch, auto-fix failures.
    • Empty result (no CI configured on the repo) → skip the watch. Log "No CI configured, skipping CI watch", append a phase_history entry recording "ci_watch": "skipped", and proceed to Step 7 (evolve runs regardless of CI outcome, so the pipeline must never wait on checks that will never appear).
  6. Exit worktree: Return to original directory and keep the worktree

Step 7: Evolve

Run the evolution engine to analyze this session and generate/improve skills.

  1. Always run — regardless of CI outcome:

    epic-harness reflect

    This triggers the Ring 3 loop: observe → analyze → seed evolved skills → update metrics.

    If $HARNESS_DIR/projects/{slug}/pending_synth.jsonl has records with status: "pending", synthesize each — launch one subagent per manifest (use your host's subagent mechanism; do NOT name a model or CLI), then apply the body it produced:

    epic-harness evolve accept-synth --skill <name> --file <body.md>

    Unconsumed manifests leave the template skill body in place.

  2. If CI green (all checks passed): additionally run
    epic-harness reflect --context --days 1
    and record the successful orbit pattern into memory:
    epic mem add --title "Orbit: {goal_slug} succeeded" \
      --type pattern --importance 0.7 \
      --body "Orbit completed. Mode: {mode}. AC: all verified. PR: {url}. Stack: {stack}."
  3. Report the evolution outcome in the final summary (evolved skills generated, score trend).
  4. Update pipeline state: "phase": "evolve", "status": "complete", then run epic orbit unlock.

Step 8: Report

## Orbit Complete
- Pipeline: PIPELINE-{id}
- Mode: {direct|council|interactive} (auto-detected)
- Spec: SPEC-{timestamp} ({goal_slug})
- Branch: orbit-{goal_slug}
- Worktree: orbit-{goal_slug} (preserved for PR)
- PR: {URL}
- Audit retries: {count}

### Phase Summary
| Phase | Status | Retries |
|-------|--------|---------|
| Spec | approved | 0 |
| Go | complete | 0 |
| Audit | PASS | {count} |
| Eval | {PASS|SKIPPED} | 0 |
| Ship | complete | 0 |
| Evolve | complete | 0 |

### Evolution
- Skills evolved: {count}
- Score trend: {improving|stable|declining}

Red Flags

  • Interactive mode proceeding without spec approval (direct and council modes auto-approve)
  • Continuing after 3 audit failures without user consent
  • Skipping isolated integration test
  • Shipping with FAIL in security audits
  • Losing audit report between phases
  • Creating branch with dirty working tree
  • Losing worktree reference between phases
  • Skipping evolve step after ship (evolve must always run, even if CI fails)

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