poteto-mode

poteto-mode is a skill for Claude Code, Codex from chhoumann/t3-pstack. It costs 49 tokens per session (6,300 once invoked), scanned A, original, MIT.

A mode for running pstack skills across different coding-agent platforms. It tells the agent to read the platform-specific instructions before using tools or bundled workflows.

In plain words
What is it for?
Use it when carrying out a pstack task on Claude Code, Codex, Pi, GitHub Copilot, or another supported runtime.
Why use it?
Different coding environments expose different tool names and conventions, so following the matching instructions avoids using the wrong commands or assumptions.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also reads $CODEX_HOME. Also seen: reads .claude/ paths; mentions subagents; mentions Claude Code.

Part of the t3-pstack plugin — 62 skills, 4 agents, 1 hook shipped together

Good fit Use it when carrying out a pstack task on Claude Code, Codex, Pi, GitHub Copilot, or another supported runtime.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/chhoumann/t3-pstack/poteto-mode
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add chhoumann/t3-pstack --skill poteto-mode
Clone the repo
git clone --depth 1 https://github.com/chhoumann/t3-pstack

Made for: Claude Code, Codex.

Or install t3-pstack, the plugin that ships this one along with the rest of its 62 skills, 4 agents, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for poteto-mode

README.md
[![agentmods](https://agentmods.dev/badge/skills/chhoumann/t3-pstack/poteto-mode/github.svg)](https://agentmods.dev/skills/chhoumann/t3-pstack/poteto-mode)
Your own site
<a href="https://agentmods.dev/skills/chhoumann/t3-pstack/poteto-mode"><img src="https://agentmods.dev/badge/skills/chhoumann/t3-pstack/poteto-mode/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for poteto-mode

Your own site · 80×15
<a href="https://agentmods.dev/skills/chhoumann/t3-pstack/poteto-mode"><img src="https://agentmods.dev/badge/skills/chhoumann/t3-pstack/poteto-mode.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,300 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00049 $0.06300
Opus 5.5 $0.00020 $0.02520
Sonnet 5.5 $0.00010 $0.01260
Haiku 4.5 $0.00005 $0.00630

Measured yesterday against content hash 77c5b8d38687, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

poteto-mode scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

The scan reads SKILL.md. This mod also ships 21 executable files (scripts/bootstrap.ts, scripts/check-plan.mjs, scripts/check-plan.test.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/pstack/skills/poteto-mode/SKILL.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Poteto mode

Bundled skills live at ../<name>/SKILL.md from this file, so put this file's absolute path in every poteto-agent prompt.

On Codex, read this file whole before acting, in a shell call of its own with max_output_tokens: 10000. A smaller output budget cuts lines out of its middle. If a read of it shows tokens truncated, read it again that way.

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 question on a "which approach", "how should I", or "what should this do" fork → classify it before you ask. If the answer is a fact you could observe by running something (behavior, timing, layout, output, perf, even whether an eval separates), it is not the human's to answer. Sketch it via the Prototype playbook (playbooks/prototype.md) and let the result decide. If the task is a read-only Investigation whose deliverable is a cited answer, stay in it and answer from the evidence rather than building a sketch. Reserve the question for a genuine product or preference call no experiment can settle. Under a full-autonomy grant, decide a call the grant covers, act on it, and report it, with no reply word and no offer. Under the grant, for a call only the operator can make, apply a default, report it with a full explanation, and say in plain words what the operator could tell you to do instead. The operator answers in their own words. Never give a shorthand token to type back. Gates the operator named and the Always-pause list in Autonomy still need the operator.
  • 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.
  • A Bug fix, Feature, or Refactoring diff → the interrogate skill with the interrogate reviewers panel before Opening a PR. Skip it only for a mechanical change, such as a rename or a dependency bump, and say so in the reply. Only findings under interrogate's Act on block, warning correctness findings included. A nit, or an edge case that cannot occur in practice, never blocks: batch accepted nits into one final fix run or drop them, and give each dismissal its reason. Round 1 reviews the whole change, and each later round reviews only the fix diff. After every fix round, a feature, refactoring delegate runs the real artifact and reports pass, fail, or could not run with its evidence. fail blocks like an Act on finding. could not run is not a pass and starts no fix, so report it. After three fix rounds, stop and report the open findings, what kind of failure they suggest, and a recommendation.
  • Nontrivial multi-step → write the throughput checkpoint (Feature step 3).
  • Any prose surface, your reply to the user included → the unslop skill. Write the reply per Writing the reply. Agent-facing prose also follows the harness's skill-authoring skill (skill-creator where installed, else the Agent Skills format).
  • Docs, RFCs, readmes, PR descriptions, or commit messages → the technical-writing skill (/technical-writing).
  • Before commit → the deslop skill (/deslop).
  • Before review → the no-comments skill (/no-comments).
  • Shipping UI / IDE / CLI → the matching control skill. That is the project's verify skill when it has one (/create-verification-skill makes one). Otherwise web UIs run through T3's preview_* tools, simulators through T3's device_* tools, and CLIs and TUIs through their own commands. The evidence is the artifact, such as a preview_snapshot saved with save: true, a recording, or the real output. For bug fixes, reproduce first on the same surface yourself. Hand to the user only under the narrow Bug fix step 1 exception.
  • Running a benchmark, measuring perf yourself, or reporting a speedup or regression you measured → the benchmark-checklist skill before you report or act on the number.
  • Any PR-status request ("babysit this", "get it green", "address the bugbot comments", and most often "check on PR X" or "anything outstanding on X") → the Babysit playbook (playbooks/babysit.md). Never triggered by merely opening a PR. Declare its mode before polling. The playbook's step 1 owns the request-to-mode mapping. Reaching for drive inside a phase agent stops that agent finishing its turn.
  • 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.
  • Deploying to a managed platform (Cloudflare, Vercel, Fly, Netlify, and the like) → load that platform's skill, project-local or installed, before running its CLI, the same way Shipping step 1 resolves the forge before the first PR operation.
  • 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", "/loop until X") → a decision trail via the show-me-your-work skill. Commit it when stakes need an auditable record. Keep it local otherwise.

Read the full file on GitHub · 170 lines

Files

What ships with it

55 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday Changed · -4 lines 77c5b8d38687
  2. 3d ago First seen · 174 lines · 49 tokens per session scan A 1386cf7ff507

Subscribe to this mod's changes

poteto-mode is a skill published in the GitHub repository chhoumann/t3-pstack (190 stars, last pushed yesterday), licensed MIT. It adds 49 tokens to every session and 6,300 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-13.

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