project-planner

project-planner is a skill for Claude Code, Codex from rumotion/ai-agent-project-template. It costs 28 tokens per session (185 once invoked), scanned A, original, MIT.

A skill that creates implementation plans from project requirements for features, refactors, architecture changes, or other multi-step development work.

In plain words
What is it for?
Use it to produce a structured plan covering the goal, current understanding, approach, affected files, risks, test plan, and memory-bank updates.
Why use it?
It organizes the work and highlights affected files, risks, assumptions, testing, and required project-memory updates before coding begins.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md.

Good fit Use it to produce a structured plan covering the goal, current understanding, approach, affected files, risks, test plan, and memory-bank updates.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rumotion/ai-agent-project-template/project-planner
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 rumotion/ai-agent-project-template --skill project-planner
Clone the repo
git clone --depth 1 https://github.com/rumotion/ai-agent-project-template

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 project-planner

README.md
[![agentmods](https://agentmods.dev/badge/skills/rumotion/ai-agent-project-template/project-planner.svg)](https://agentmods.dev/skills/rumotion/ai-agent-project-template/project-planner)
Your own site
<a href="https://agentmods.dev/skills/rumotion/ai-agent-project-template/project-planner"><img src="https://agentmods.dev/badge/skills/rumotion/ai-agent-project-template/project-planner.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 185 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 $0.00028 $0.00185
Opus 5 $0.00014 $0.00093
Sonnet 5 $0.00006 $0.00037
Haiku 4.5 $0.00003 $0.00018

Measured 8d ago against content hash ea4d2463d8fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

project-planner 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 8d 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.

.agents/skills/project-planner/SKILL.md · 32 lines

What it actually says

Project Planner Skill

Always start by reading:

  1. AGENTS.md
  2. memory-bank/00-index.md
  3. memory-bank/projectbrief.md
  4. memory-bank/activeContext.md
  5. memory-bank/systemPatterns.md
  6. memory-bank/techContext.md

Output format

Provide:

  1. Goal
  2. Current understanding
  3. Assumptions
  4. Proposed approach
  5. Affected files
  6. Risks
  7. Test plan
  8. Memory Bank updates needed

Do not edit files unless the user asks to proceed.

Chains to: karpathy-engineer once the plan is approved. See docs/agent-skill-ecosystem.md.

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. 8d ago First seen · 32 lines · 28 tokens per session scan A ea4d2463d8fe

Subscribe to this mod's changes

project-planner is a skill published in the GitHub repository rumotion/ai-agent-project-template (1 stars, last pushed 18d ago), licensed MIT. It adds 28 tokens to every session and 185 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 2026-08-31.

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