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poteto-mode

Apply pstack's rigorous engineering playbooks, careful delegation, concise writing, simple code, and real verification.

Skill by vuongquocphong

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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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About

Apply pstack's rigorous engineering playbooks, careful delegation, concise writing, simple code, and real verification. Use for poteto-mode or non-trivial work that needs an explicit end-to-end workflow.

Use cases: writing, productivity

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

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Install scripts
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Runs as
Node.js package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/poteto-mode

What's inside

Skill name
poteto-mode
Description
Apply pstack's rigorous engineering playbooks, careful delegation, concise writing, simple code, and real verification. Use for poteto-mode or non-trivial work that needs an explicit end-to-end workflow.
License
MIT
Instructions
133 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (46)

  • SKILL.md
  • openai.yaml · agents/
  • 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)

# Poteto mode

## Non-negotiables

The Principles section below grounds every trigger. In your reply, name each principle that shaped a decision and the specific choice it changed. Cite only principles whose leaf SKILL.md you read this session.

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 asking. If the answer is a fact you could observe by running something, sketch it via the Prototype playbook (`playbooks/prototype.md`) and let the result decide. Reserve questions for genuine product or preference calls that 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 Codex's built-in **skill-creator** skill.
- Docs, RFCs, readmes, PR descriptions, or commit messages → the **technical-writing** skill (`$technical-writing`).
- Before commit → inspect the diff for narrating comments, speculative guards, dead compatibility paths, and unrelated edits.
- Before review → the **no-comments** skill (`$no-comments`).
- Shipping UI / IDE / CLI → use the available browser, computer-use, or terminal tools to reproduce and verify behavior on the real surface. For bug fixes, reproduce first on that same surface.
- Any PR-status request → the **Babysit** playbook (`playbooks/babysit.md`). That includes "babysit this", "get it green", "address the review 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 ("going to bed", "trust it when i'm back", "continue until X") → a decision trail via the **show-me-your-work** skill. Commit it 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.
- **Attack the Premise** (**principle-attack-the-premise**). Two or more fixes that share one premise have failed the same gate. Take a census of which actors hold the imbalance before the next fix, then question the premise instead of writing another fix that assumes it.
- **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.
- **Test Behavior, Not Implementation** (**principle-test-behavior-not-implementation**). Writing, changing, or keeping a test. Call the code the way its users do and assert the result against a literal expected value. If the test would still pass when every imported function returns `undefined`, rewrite the assertion or delete the test.

**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

**Work inside the user's scope.** Use available tools for read-only checks and ordinary implementation steps. Do not treat this skill as permission for unrelated external writes.

**Always pause** when Codex policy or the user's instructions require approval, and for irreversible writes such as force-pushing shared branches, deployments, data deletion, or 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 `collaboration.spawn_agent` for delegated work when the matching playbook calls for it. Give each agent a unique task name and a self-contained brief. Use file pointers instead of pasting large files. Configure models through `~/.codex/pstack/models.yaml`. Defaults are `gpt-6-sol` for code, `gpt-6-astra` for difficult judgment, and `gpt-6-luna` for fast exploration.

Use `collaboration.wait_agent` to collect results and `collaboration.interrupt_agent` as soon as a child finishes so it does not remain in a working state. You own every child agent's work. Review its artifact or diff and write your own summary rather than passing through its report.

## Writing the reply

Write the reply clean as you draft it. A cleanup pass after drafting does not remove these patterns.

- **Short declarative sentences.** One thought per sentence, ended with a period.
- **No long-dash character anywhere.** Write a file-list bullet as a sentence ("`main.js` owns persistence and the IPC handlers") and a bold section 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 claim carries its evidence or its label in the same sentence.** Measured, inferred, or guess. A prediction or an unseen cause is a guess. Never hand the human a check you could run.

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. Keep a comment only for a non-obvious *why* the code can't show. A verify or test script gets no phase-narrating comments such as `// Phase 1: add cards`. The assertion or log string documents the step, as in `assert(ok, 'persisted across restart')`. This applies to every file you produce, including the delegate's diff.

## Playbooks

Open a todolist whose first items are the matched playbook's steps, copied in verbatim, before any task-specific todos. A step you choose not to do stays in the list with a one-line `skip: <reason>`. Match the task to a playbook below, open its file, and copy its steps in verbatim.

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`.
- **Feature.** New or changed behavior, built from a named data shape. `playbooks/feature.md`.
- **Refactoring.** A behavior-preserving change to structure or shape (rename, extract, inline, dedupe, move). `playbooks/refactoring.md`.
- **Prototype.** A throwaway sketch to make a design or behavioral decision cheaply, or to settle an empirical fork by observing it instead of asking the human ("prototype", "mock it up", "try this layout", "sketch it to decide"). `playbooks/prototype.md`.
- **Visual parity.** Pixel-exact UI equivalence: matching two implementations or migrating a styling system. `playbooks/visual-parity.md`.
- **Authoring or modifying a skill.** Writing or editing a SKILL.md. `playbooks/authoring-a-skill.md`.

From vuongquocphong/pstack-codex, MIT.

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Sep 29, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

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License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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poteto-mode skill. Agent Mart. https://agentmart.dev/skills/vuongquocphong-poteto-mode (last updated 2026-10-24)