plan

plan is a skill for Claude Code, Codex from first-fluke/fullstack-starter. It costs 37 tokens per session (74 once invoked), scanned A, original, MIT.

A project-planning workflow that turns requirements into ordered tasks, API agreements, and tracking documents.

In plain words
What is it for?
Use it to gather requirements, break down software work, define API contracts, and maintain a project plan.
Why use it?
It helps prevent unclear scope, missing work, and disagreements about how different parts of a system should connect.

Skill for Claude CodeCodex

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/first-fluke/fullstack-starter/plan
Any agent
npx skills add first-fluke/fullstack-starter --skill plan
Clone the repo
git clone --depth 1 https://github.com/first-fluke/fullstack-starter

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 plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/first-fluke/fullstack-starter/plan.svg)](https://agentmods.dev/skills/first-fluke/fullstack-starter/plan)
Your own site
<a href="https://agentmods.dev/skills/first-fluke/fullstack-starter/plan"><img src="https://agentmods.dev/badge/skills/first-fluke/fullstack-starter/plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 74 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 $0.00037 $0.00074
Opus 5 $0.00018 $0.00037
Sonnet 5 $0.00007 $0.00015
Haiku 4.5 $0.00004 $0.00007

Measured yesterday against content hash e3304f34a328, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 yesterday.

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.

.claude/skills/plan/SKILL.md · 12 lines

What it actually says

/plan

Read and follow .agents/workflows/plan.md step by step.

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 First seen · 12 lines · 37 tokens per session scan A e3304f34a328

Subscribe to this mod's changes

plan is a skill published in the GitHub repository first-fluke/fullstack-starter (222 stars, last pushed today), licensed MIT. It adds 37 tokens to every session and 74 once invoked, about $0.0002 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.