pi-anthropic-auth: Skill for Claude Code

.pi/skills/tidy-first/SKILL.md

tidy-first is a skill for Claude Code, Codex from gotgenes/pi-anthropic-auth. It costs 66 tokens per session (693 once invoked), scanned A, original, MIT.

A preparation process for implementation agents based on the Tidy First approach: make small code improvements that simplify an upcoming change before implementing it. It sends the files involved to a read-only reviewer and then assesses the suggestions.

In plain words
What is it for?
Use it at the start of implementation plans or build plans that modify source or test files, after the existing tests pass.
Why use it?
It can make a planned code change easier to understand and safer to implement. It also prevents unnecessary preparation when the plan only changes documentation or configuration.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

This is gotgenes/pi-anthropic-auth's own configuration. It tells Claude Code and Codex how to work on pi-anthropic-auth itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything pi-anthropic-auth configures →

Reuse

Borrowing it

Nothing to install: this file belongs to gotgenes/pi-anthropic-auth. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/gotgenes/pi-anthropic-auth/main/.pi/skills/tidy-first/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/gotgenes/pi-anthropic-auth

Made for: Claude Code, Codex.

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 tidy-first

README.md
[![agentmods](https://agentmods.dev/badge/skills/gotgenes/pi-anthropic-auth/tidy-first/github.svg)](https://agentmods.dev/skills/gotgenes/pi-anthropic-auth/tidy-first)
Your own site
<a href="https://agentmods.dev/skills/gotgenes/pi-anthropic-auth/tidy-first"><img src="https://agentmods.dev/badge/skills/gotgenes/pi-anthropic-auth/tidy-first/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 tidy-first

Your own site · 80×15
<a href="https://agentmods.dev/skills/gotgenes/pi-anthropic-auth/tidy-first"><img src="https://agentmods.dev/badge/skills/gotgenes/pi-anthropic-auth/tidy-first.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 693 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00066 $0.00693
Opus 5 $0.00033 $0.00347
Sonnet 5 $0.00013 $0.00139
Haiku 4.5 $0.00007 $0.00069

Measured 10d ago against content hash e0830894d736, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

tidy-first 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 10d 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.

.pi/skills/tidy-first/SKILL.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: tidy-first

Load this skill at the start of implementation — after the green baseline passes and before the first change. It encodes Kent Beck's Tidy First: make the change easy (with small preparatory refactors landed first), then make the easy change. The assessment runs in a subagent so the many-files read does not consume the implementation agent's context.

Applicability gate

Dispatch the assessor when the plan will create or modify src/ or test/ files. Skip for a docs-only or config-only plan (a /build-plan that touches no code) — there is nothing to prepare. Note the skip and proceed.

Step 1: Gather the target files

From the plan's "Module-Level Changes" table (or "TDD Order"), list the src//test/ files the change will modify or create. This list plus the plan path is the assessor's input.

Step 2: Dispatch the assessor

Dispatch the tidy-first-assessor subagent via the subagent tool:

  • subagent_type: "tidy-first-assessor"
  • description: "Tidy-First assessment for issue #N"
  • prompt: include the issue number, the plan file path, and the target-files list from Step 1.

The assessor is read-only and returns an advisory report: Recommended preparatory commits (each tied to a specific friction the change will hit), Optional ones, and Rejected-as-scope-creep items it deliberately declined.

Step 3: Triage the report

The report is advisory — you decide what lands.

  • Recommended tidyings: land each as its own refactor: or test: commit before the feature work, in the order given, each leaving the tree green. This is the point — the behavior-change commit that follows is small and reviewable.
  • Optional tidyings: take them only if they genuinely shrink the change; skip otherwise.
  • Rejected items: do not act on them. If one looks worth doing, it is separate-concern cleanup — note it for a future improvement round or file it as its own issue, do not fold it into this change. Read a rejection's reasoning, not just its verdict — one that contradicts the plan is a signal to re-examine the plan.

Read the full file on GitHub · 56 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. 10d ago First seen · 56 lines · 66 tokens per session scan A e0830894d736

Subscribe to this mod's changes

tidy-first is a skill published in the GitHub repository gotgenes/pi-anthropic-auth (241 stars, last pushed 4d ago), licensed MIT. It adds 66 tokens to every session and 693 once invoked, about $0.0003 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 2026-08-30.

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