tp-docs-init

A documentation setup tool that analyzes a codebase and creates architecture, product-roadmap, and known-issues documents. It is part of a test-driven development documentation workflow, where tests and project context guide implementation.

In plain words
What is it for?
Use it to scaffold the three documents in three-pillars-docs/. It expects vision.md to exist, but can continue without it.
Why use it?
It gives the workflow written context about how the code is structured, what is planned, and what problems are known.

Skill for Claude CodeCodex

Part of the three-pillars plugin — 37 skills, 20 agents 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/curtisthe/three-pillars-plugin/tp-docs-init
Any agent
npx skills add CurtisThe/three-pillars-plugin --skill tp-docs-init
Clone the repo
git clone --depth 1 https://github.com/CurtisThe/three-pillars-plugin

Made for: Claude Code, Codex.

Or install three-pillars, the plugin that ships this one along with the rest of its 37 skills, 20 agents.

Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,810 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 $0.00070 $0.01810
Opus 5 $0.00035 $0.00905
Sonnet 5 $0.00014 $0.00362
Haiku 4.5 $0.00007 $0.00181

Measured 3d ago against content hash 0a37725f68e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

tp-docs-init 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 3d 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.

skills/tp-docs-init/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Docs Init

Analyze the current codebase and scaffold the three project docs that the TDD pipeline uses for context (alongside three-pillars-docs/vision.md, which is created by /tp-setup).

No arguments — operates on the current repository.

Prerequisite

three-pillars-docs/vision.md should exist — it's the "why" pillar that the roadmap, architecture, and known-issues docs frame themselves against. If it's missing, tell the user and recommend running /tp-setup first. Do not block: the user can opt to proceed without a vision, but the resulting scaffolds will be weaker because there's no "why" to anchor current state and priorities against.

Environment prereq — optional status line

While you're scaffolding docs, also check whether the plugin's optional status line is installed. The plugin ships a statusline.sh script that shows context-window usage, active design, and git status — but it requires a one-time copy to ~/.claude/statusline.sh to activate (the plugin's settings.json already references that path).

Check:

test -x "$HOME/.claude/statusline.sh" && echo "installed" || echo "missing"

If missing, do not block the docs scaffolding. After the docs are written, surface a one-line recommendation to the user:

Optional: the three-pillars status line is not installed. Run cp statusline.sh ~/.claude/statusline.sh && chmod +x ~/.claude/statusline.sh from the plugin's install directory to enable the context-window progress bar. Skip this if you don't want a custom status line — nothing breaks either way.

If installed, say nothing (it's already working).

This check lives here, in docs-init, because /tp-docs-init is where a user first encounters the architecture of a fresh project — it's the natural moment to surface environment setup the user may have skipped during install. It is NOT a hard prerequisite: proceed with the scaffolding regardless of the statusline's state.

Steps

  1. Run first-run preflight per skills/_shared/first-run.md.

Read the full file on GitHub · 93 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. 3d ago First seen · 93 lines · 70 tokens per session scan A 0a37725f68e5

Subscribe to this mod's changes

tp-docs-init is a skill published in the GitHub repository CurtisThe/three-pillars-plugin (4 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 70 tokens to every session and 1,810 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 2026-08-31.

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