02-plan

02-plan is a skill for Claude Code from tony/skills. It costs 27 tokens per session (683 once invoked), scanned A, original, MIT.

A planning step that turns measured pytest speedup ideas into an ordered list of proposed commits. Pytest is a Python tool for running tests.

In plain words
What is it for?
Use it after benchmarking to rank safe test-suite improvements, apply limits, and produce a commit-by-commit plan.
Why use it?
It prevents untested guesses from becoming code changes and makes the optimization work reviewable before editing the test suite.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; names the AskUserQuestion tool; mentions Claude Code.

Part of the pytest-optimizer plugin — 4 skills shipped together

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.

agentmods
npx agentmods add skills/tony/skills/02-plan
Any agent
npx skills add tony/skills --skill 02-plan
Clone the repo
git clone --depth 1 https://github.com/tony/skills

Made for: Claude Code.

Or install pytest-optimizer, the plugin that ships this one along with the rest of its 4 skills.

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 02-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/tony/skills/02-plan.svg)](https://agentmods.dev/skills/tony/skills/02-plan)
Your own site
<a href="https://agentmods.dev/skills/tony/skills/02-plan"><img src="https://agentmods.dev/badge/skills/tony/skills/02-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 683 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00027 $0.00683
Opus 5 $0.00014 $0.00342
Sonnet 5 $0.00005 $0.00137
Haiku 4.5 $0.00003 $0.00068

Measured 2d ago against content hash e2cd5df8b870, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

02-plan 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 2d ago.

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/pytest-optimizer/skills/02-plan/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

02-plan

Turn measured candidates into a reviewable commit plan. This phase only reads the suite and writes plan.json; it makes no code changes.

$ARGUMENTS may pass --max-commits=N to cap the plan, --min-score to raise the inclusion threshold, and --force to recompute.

Step 1: Load and score

Read benchmarks.json and baseline.json. Score every validated candidate with ../../references/scoring-rubric.md:

total = 0.35*safety + 0.30*impact + 0.15*effort
      + 0.12*confidence + 0.08*reversibility

Apply the hard gates first: drop any candidate with safety < 0.4 or impact == 0. For each dropped item, capture the prerequisite refactor (if any) as a separate, clearly-labeled follow-up — not as an auto-applied commit.

Step 2: Order

Score sets priority; these constraints override it where they apply:

  1. Safety-gate fixes first (make collection deterministic, prove order independence) before any parallel/reorder speedup.
  2. Typing and parametrize migrations early (low-risk, readable diffs).
  3. Scope and consolidation before parallelism.
  4. One speedup per commit — never bundle.

Honor --max-commits / --min-score.

Step 3: Draft commits

For each planned item, draft a commit from ../../templates/commit-message.tmpl, adapting the type(scope) prefix to the target project's convention (read from its AGENTS.md/CLAUDE.md). Each entry records: order, heuristic id, the score breakdown, target files, the draft subject/body, the verify command (the project test + quality checks), and any depends_on. Write plan.json and update state.json (phase=plan, plan hash).

Step 4: Present for approval (plan mode)

This phase is a decision point. Enter plan mode (Claude Code: EnterPlanMode; others: /plan or Shift+Tab). Present the 02-plan sections from ../../references/output-contract.md: ## Ranked plan, ## Dropped at the gate, ## Ordering rationale. Let the user reorder, drop items, or cap the count. Because plan mode is the decision point, omit the AskUserQuestion panel here. Exit plan mode once approved; plan.json is the contract /pytest-optimizer:03-execute consumes.

Read the full file on GitHub · 64 lines

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. 2d ago First seen · 64 lines · 27 tokens per session scan A e2cd5df8b870

Subscribe to this mod's changes

02-plan is a skill published in the GitHub repository tony/skills (2 stars, last pushed 7d ago), licensed MIT. It adds 27 tokens to every session and 683 once invoked, about $0.0001 per session on Opus 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 2026-09-03.

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