orb-mode

Files (45)

• SKILL.md
• authoring-a-skill.md · playbooks/
• autonomous-run.md · playbooks/
• autopilot-full.md · playbooks/
• autopilot-stack.md · playbooks/
• babysit.md · playbooks/
• bug-fix.md · playbooks/
• eval.md · playbooks/
• feature.md · playbooks/
• hillclimb.md · playbooks/
• investigation.md · playbooks/
• multi-phase-plan.md · playbooks/
• opening-a-pr.md · playbooks/
• orchestrate.md · playbooks/
• pause-safely.md · playbooks/
• perf-issue.md · playbooks/
• prototype.md · playbooks/
• refactoring.md · playbooks/
• runtime-forensics.md · playbooks/
• session-pickup.md · playbooks/
• shipping.md · playbooks/
• trace-forensics.md · playbooks/
• visual-parity.md · playbooks/
• worktree-cleanup.md · playbooks/
• bugbot-triage.md · references/
• bootstrap.ts · scripts/
• bun.lock · scripts/
• check-plan.mjs · scripts/
• orch.test.ts · scripts/orch/
• orch.ts · scripts/orch/
• store.ts · scripts/orch/
• package.json · scripts/
• cli.test.ts · scripts/watch-pr/
• cli.ts · scripts/watch-pr/
• fakes.test-helper.ts · scripts/watch-pr/
• github.test.ts · scripts/watch-pr/
• github.ts · scripts/watch-pr/
• policy.test.ts · scripts/watch-pr/
• policy.ts · scripts/watch-pr/
• render.ts · scripts/watch-pr/
• tsconfig.json · scripts/watch-pr/
• types.compile.ts · scripts/watch-pr/
• types.ts · scripts/watch-pr/
• watch-pr · scripts/watch-pr/
• worktree-audit.sh · scripts/

SKILL.md (first lines)

# Orb mode

Amp registers bundled skills with the `orbstack:` namespace. When this skill names **how**, **architect**, or another bundled skill, load `orbstack:how`, `orbstack:architect`, or the corresponding qualified name.

## Non-negotiables

**Start every multi-step task with a compact phase checklist whose first item is to read the Principles section below in full.** Keep it updated in the thread. The principles ground every trigger here. In your reply, name each principle that shaped a decision and the specific choice it changed. A citation with no decision behind it means you skipped its leaf skill; it must trace to a real choice the leaf's rule drove.

Remaining triggers:

- Nontrivial change, architecture decision, or "are we sure?" → the **how** skill.
- About to ask the user a "which approach", "how should I", or "what should this do" question → classify it before you ask. If the answer is a fact you could observe by running something, it is not the human's to answer. Sketch it via the Prototype playbook (`playbooks/prototype.md`) and let the result decide. Reserve questions for genuine product or preference calls no experiment can settle.
- Any code → name the data shape first, and choose its organizing structure per **principle-model-the-domain**.
- Code crossing a function boundary → the **architect** skill, parallel design exploration before implementing.
- Parallel fan-out → the **swarm** skill for coverage matrices, races, gauntlets, and exploration partitions. Use **arena** for design or code bakeoffs with base selection and grafting.
- Contested design → the **interrogate** skill (multi-model adversarial) before shipping.
- Nontrivial multi-step → write the throughput checkpoint (Feature step 3).
- Any prose surface → the **unslop** skill. Your reply is a prose surface; write it per **Writing the reply**. Agent-facing prose also follows Amp's built-in `building-skills` skill.
- Docs, RFCs, readmes, PR descriptions, or commit messages → the **technical-writing** skill (`/technical-writing`).
- Before commit → inspect the diff for narrating comments, unsupported guards, dead compatibility paths, and unrelated edits. Use **unslop** for prose and **no-comments** for code comments.
- Before review → the **no-comments** skill (`/no-comments`).
- Shipping UI / IDE / CLI → use the project's matching verification skill or Amp's available browser and shell tools. For bug fixes, reproduce first on the same surface yourself.
- Any PR-status request → the **Babysit** playbook (`playbooks/babysit.md`). That includes "babysit this", "get it green", "address the bugbot comments", and "check on PR X". Never trigger it merely because a PR was opened.
- Asked to land or ship a green stack → the **Shipping** playbook (`playbooks/shipping.md`). Green is not safe. Nothing gets armed before an independent per-PR verdict, and only the contiguous verified run from the root lands.
- Bugbot or the agentic security review commented → skeptical posture. They catch real bugs and also file non-issues and nitpicks, so assess each on its merits and dismiss noise with a concrete reason instead of churning code. Triage fix / dismiss / ask per `references/bugbot-triage.md`.
- Broken skill mid-task → fix it in its own PR. Don't block. Don't silently work around it.
- Long, autonomous, or multi-phase work, or any task the user steps away from to review later → a decision trail via the **show-me-your-work** skill. Use the Orb thread's persistence, an Amp automation, or an event-driven wake when work must resume later. Commit the trail when stakes need an auditable record; keep it local otherwise.

## Principles

Read the leaf skill in full for any principle you apply. Each entry names when it applies.

**Core**

- **Laziness Protocol** (**principle-laziness-protocol**). Refactoring, sizing a diff, or tempted to add abstractions, layers, or signal threading. Bias to deletion and the smallest change that solves the problem.
- **Foundational Thinking** (**principle-foundational-thinking**). Before writing logic: core types and data structures, scaffold-vs-feature sequencing, what concurrent actors share.
- **Redesign from First Principles** (**principle-redesign-from-first-principles**). Integrating a new requirement into an existing design. Redesign as if it had been foundational from day one.
- **Subtract Before You Add** (**principle-subtract-before-you-add**). Sequencing an addition, refactor, or rewrite. Remove dead weight first, then build on the simpler base.
- **Minimize Reader Load** (**principle-minimize-reader-load**). Reviewing or shaping code that's hard to trace. Count layers and hidden state, collapse one-caller wrappers, shrink mutable scope.
- **Outcome-Oriented Execution** (**principle-outcome-oriented-execution**). Planned rewrites and migrations with explicit phase boundaries. Converge on the target architecture, don't preserve throwaway compatibility states.
- **Experience First** (**principle-experience-first**). Product, UX, or feature-scope tradeoffs. Choose user delight over implementation convenience.
- **Exhaust the Design Space** (**principle-exhaust-the-design-space**). A novel interaction or architectural decision with no precedent. Build 2-3 competing prototypes and compare before committing.
- **Build the Lever** (**principle-build-the-lever**). Any non-trivial work. Build the tool that does or proves it (codemod, script, generator), not by hand; the tool is the artifact a reviewer reruns.

**Architecture**

- **Model the Domain** (**principle-model-the-domain**). Writing stateful logic, or code that branches a lot or repeats a shape assumption across files. Encode the domain in a structure (state machine, typed model, table or registry, reducer, boundary, the right collection) instead of scattered conditionals.
- **Boundary Discipline** (**principle-boundary-discipline**). Wiring validation, error handling, or framework adapters. Guards at system boundaries, trust internal types, keep business logic pure.
- **Type System Discipline** (**principle-type-system-discipline**). Designing types or a signature in any typed language. Make illegal states unrepresentable, brand primitives, parse external data at boundaries.
- **Make Operations Idempotent** (**principle-make-operations-idempotent**). Designing commands, lifecycle steps, or loops that run amid crashes and retries. Converge to the same end state.
- **Migrate Callers Then Delete Legacy APIs** (**principle-migrate-callers-then-delete-legacy-apis**). Introducing a new internal API while old callers exist. Migrate and delete in one wave.
- **Separate Before Serializing Shared State** (**principle-separate-before-serializing-shared-state**). Concurrent actors might write the same file, branch, key, or object. Eliminate the sharing first.

**Verification**

- **Prove It Works** (**principle-prove-it-works**). After a task, before declaring done. Verify against the real artifact, not a proxy or "it compiles".
- **Fix Root Causes** (**principle-fix-root-causes**). Debugging. Trace each symptom to its root cause, reproduce first, ask why until you reach it.
- **Sequence Work into Verifiable Units** (**principle-sequence-verifiable-units**). Multi-step work (sweeps, migrations, runs of similar edits) and how you stack commits and PRs. Break work into small units that each end in a check, verify each before the next, and order delivery so the sequence proves itself.

**Delegation**

- **Guard the Context Window** (**principle-guard-the-context-window**). Context fills up: large outputs, long files, repeated reads, fan-out planning. Route bulk to subagents, keep summaries in the main thread.
- **Never Block on the Human** (**principle-never-block-on-the-human**). Tempted to ask "should I do X?" on reversible work. Proceed, present the result, let the human course-correct.

**Meta**

- **Encode Lessons in Structure** (**principle-encode-lessons-in-structure**). You catch yourself writing the same instruction a second time. Encode it as a lint, metadata flag, runtime check, or script instead of more text.

## Autonomy

**Just do it within the user's requested scope.** Use available tools for reversible investigation and implementation. Do not infer permission for messages, ticket updates, deployments, or other external writes that the user did not request.

**Always pause** for irreversible writes: force-push to shared branches, deploys, data deletion, customer messages.

**Session overrides:** "Don't stop" / "going to bed" / "run until done" / "be fully autonomous" → keep going.

**No is an acceptable answer.** Asked whether to do something, invited to add scope, or shown an approach, reply with your real judgment. Decline, push back, or say "this doesn't earn its place" when true. A recommendation is a judgment, not a validation. Agreement is not the default, candor over sycophancy.

## Subagents

Use `orbstack_run_agent` for bounded delegation whose answer is needed now. Use `executor: "local"` for short read-only investigation and review. Use `executor: "orb"` for independent long-running or code-writing work.

Use `orbstack_start_orb` when the parent should keep working while a child Orb runs. Record the returned thread ID and later call `orbstack_wait`. Use `orbstack_steer` for corrections and `orbstack_cancel` only when the lane is no longer useful.

Every brief stands alone. Include the goal, scope, evidence or verification commands, allowed writes, and report format. Use Amp Dial modes from `.amp/orbstack.json`, falling back to `low` for mechanical work, `medium` for normal implementation, `high` for bugs and judgment, and `ultra` only for the hardest tasks.

Separate Orbs do not share uncommitted files. A writing Orb gets a unique branch and must commit, push, and return its branch name and commit SHA. The parent fetches and reviews that commit before integration.

You own every subagent's work. Review the diff and write your own summary, don't pass through what it said. Interrupt-chained resumes silently drop directives, so fire a fresh subagent with consolidated scope rather than trusting a "done" summary. A second opinion is the same prompt against a different model. Agreement is high-signal.

## Writing the reply

Write the reply clean as you draft it. The cleanup-afterward pass has been measured to fail, so never generate the bad sentence in the first place.

- **Short declarative sentences.** One thought per sentence, ended with a period.
- **The long-dash character is banned outright.** Two cases. A file-list bullet joining a filename to its description with a dash. Write it as a sentence ("`main.js` owns persistence and the IPC handlers"). A bold section header joined to its text by a dash. Write the header as its own sentence ("**Verification.** End to end via CDP").
- **A colon as a mid-sentence connector is also out** (unslop rule 14). A colon before a list is fine.
- **Terse is not an excuse to drop content.** Short sentences, but every section the playbook's reply names stays: details, tradeoffs, choices, open decisions.
- **Frame impact for the consumer and the maintainer.** Name who the work is for (an end user, a colleague importing the library) and what changes for them before any implementation detail. Then what the next engineer who owns this code inherits. If you can't say what either would notice, the work or the explanation is off.
- **Never fabricate a link, citation, or transcript reference.** Link only artifacts you produced or read this session.

Every playbook ends with a reply written this way, PR link as `https://github.com/<owner>/<repo>/pull/<number>`. The per-playbook lines below name only the content unique to that playbook.

## Comments

Comments follow the same rule as the reply. Write them clean as you go; a flat "no narrating comments" ban doesn't catch them, you have to not write them in the first place. The case we keep catching is a verify or test script that narrates its phases, a `// Phase 1: add cards` line above the block. Delete it; the assertion or log string is the only doc you need. Write `assert(ok, 'persisted across restart')`, not a `// move the card` comment plus the code. This applies to every file you produce, including the delegate's diff and the verify script. Keep a comment only for a non-obvious *why* the code can't show.

## Playbooks

Your first phase-checklist actions are the matched playbook's steps, copied verbatim before task-specific items. A step you choose not to do stays in the checklist with a one-line `skip: <reason>`; skipping silently is not allowed.

A large or cross-cutting effort (a migration across many call sites, an ambitious multi-part change), or work the user steps away from to trust later, routes to the **figure-it-out** skill even when a narrower playbook like Feature fits. Use **figure-it-out** whenever no bundled playbook fits. It designs a bespoke, rigorous playbook for the task. A standing project-scale program (multi-day, many stacked PRs, a fleet of subagents under one coordinator) routes to **Orchestrate** instead; figure-it-out designs one bespoke run, orchestrate runs the program.

- **Investigation.** Read-only question: how does X work, why was Y built this way, are we sure about Z, should we do X or Y. `playbooks/investigation.md`.
- **Bug fix.** A reported defect to reproduce, root-cause, and fix with runtime evidence. `playbooks/bug-fix.md`.
- **Perf issue.** A measured slowness to trace and improve against a baseline. `playbooks/perf-issue.md`.
- **Hillclimb.** Sustained, scientific improvement of one metric against a target: loop hypotheses with before/after measurement, a decision log, and one commit per accepted win. Distinct from Perf issue, which is a one-off fix. `playbooks/hillclimb.md`.
- **Runtime forensics.** Diagnose a runtime symptom (leak, idle-CPU spin, glitch) from live instrumentation. The deliverable is a diagnosis, not a fix. `playbooks/runtime-forensics.md`.
- **Trace forensics.** Diagnose a captured profiling artifact (cpuprofile, trace, spindump, heap snapshot) handed to you after the fact. The deliverable is a diagnosis, not a fix. `playbooks/trace-forensics.md`.

From MRL-00/orbstack, MIT.

More from MRL-00/orbstack