study-playbook

study-playbook is a skill for Claude Code, Codex from aidemd-mcp/server. It costs 52 tokens per session (111 once invoked), scanned A, original, MIT.

A coding-reference lookup that loads the project's shared playbook before code is written or reviewed.

In plain words
What is it for?
Use it when implementing or reviewing code that must match the project's established practices.
Why use it?
It helps agents follow agreed coding conventions, patterns, and architecture decisions instead of guessing or searching the repository repeatedly.

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/aidemd-mcp/server/study-playbook
Any agent
npx skills add aidemd-mcp/server --skill study-playbook
Clone the repo
git clone --depth 1 https://github.com/aidemd-mcp/server

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 study-playbook

README.md
[![agentmods](https://agentmods.dev/badge/skills/aidemd-mcp/server/study-playbook.svg)](https://agentmods.dev/skills/aidemd-mcp/server/study-playbook)
Your own site
<a href="https://agentmods.dev/skills/aidemd-mcp/server/study-playbook"><img src="https://agentmods.dev/badge/skills/aidemd-mcp/server/study-playbook.svg" alt="Measured on agentmods" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 111 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 $0.00052 $0.00111
Opus 5 $0.00026 $0.00056
Sonnet 5 $0.00010 $0.00022
Haiku 4.5 $0.00005 $0.00011

Measured 4d ago against content hash 5e661098419d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

study-playbook 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 4d 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.

.claude/skills/study-playbook/SKILL.md · 12 lines

What it actually says

/study-playbook — Load Coding Playbook Context

Call aide_brain once. Following the brain access instructions it returns, read coding-playbook/study-playbook.md and follow the navigation methodology it describes.

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. 4d ago First seen · 12 lines · 52 tokens per session scan A 5e661098419d

Subscribe to this mod's changes

study-playbook is a skill published in the GitHub repository aidemd-mcp/server (3 stars, last pushed 3mo ago), licensed MIT. It adds 52 tokens to every session and 111 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.