mcp-bitbucket-dc: Skill for Claude Code

.agents/skills/napkin/SKILL.md

napkin is a skill for Claude Code, Codex from christopherekfeldt/mcp-bitbucket-dc. It costs 71 tokens per session (712 once invoked), scanned A, a copy of napkin, MIT.

A per-repository Markdown runbook called a napkin. It stores recurring, useful instructions in .claude/napkin.md and is reviewed and cleaned up at every session.

In plain words
What is it for?
Use it to record repeatable project guidance, shell commands, validation practices, and other rules that future coding sessions should reuse.
Why use it?
It preserves high-value lessons between sessions without becoming a chronological diary full of stale notes.

Skill for Claude CodeCodex

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

This is christopherekfeldt/mcp-bitbucket-dc's own configuration. It tells Claude Code and Codex how to work on mcp-bitbucket-dc 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 mcp-bitbucket-dc configures →

Reuse

Borrowing it

Nothing to install: this file belongs to christopherekfeldt/mcp-bitbucket-dc. 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/christopherekfeldt/mcp-bitbucket-dc/main/.agents/skills/napkin/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/christopherekfeldt/mcp-bitbucket-dc

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 napkin

README.md
[![agentmods](https://agentmods.dev/badge/skills/christopherekfeldt/mcp-bitbucket-dc/napkin/github.svg)](https://agentmods.dev/skills/christopherekfeldt/mcp-bitbucket-dc/napkin)
Your own site
<a href="https://agentmods.dev/skills/christopherekfeldt/mcp-bitbucket-dc/napkin"><img src="https://agentmods.dev/badge/skills/christopherekfeldt/mcp-bitbucket-dc/napkin/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 napkin

Your own site · 80×15
<a href="https://agentmods.dev/skills/christopherekfeldt/mcp-bitbucket-dc/napkin"><img src="https://agentmods.dev/badge/skills/christopherekfeldt/mcp-bitbucket-dc/napkin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 712 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 95% copy Near-identical to another mod 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 $0.00071 $0.00712
Opus 5 $0.00036 $0.00356
Sonnet 5 $0.00014 $0.00142
Haiku 4.5 $0.00007 $0.00071

Measured 11d ago against content hash e0f05f93d818, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

napkin 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 11d 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.

Origin

This is a copy

95% identical to napkin — 9 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/napkin/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Napkin

You maintain a per-repo markdown runbook, not a chronological log. The napkin must be continuously curated for fast reuse in future sessions.

This skill is always active. Every session. No trigger required.

Session Start: Read And Curate

First thing, every session — read .claude/napkin.md before doing anything else. Internalize what's there and apply it silently. Don't announce that you read it. Just apply what you know.

Every time you read it, curate it immediately:

  • Re-prioritize items by importance (highest first).
  • Merge duplicates and remove stale/low-signal notes.
  • Keep only recurring, high-frequency guidance.
  • Ensure each item contains an explicit "Do instead" action.
  • Enforce category caps (top 10 per category).

If no napkin exists yet, create one at .claude/napkin.md:

# Napkin Runbook

## Curation Rules
- Re-prioritize on every read.
- Keep recurring, high-value notes only.
- Max 10 items per category.
- Each item includes date + "Do instead".

## Execution & Validation (Highest Priority)
1. **[YYYY-MM-DD] Short rule**
   Do instead: concrete repeatable action.

## Shell & Command Reliability
1. **[YYYY-MM-DD] Short rule**
   Do instead: concrete repeatable action.

## Domain Behavior Guardrails
1. **[YYYY-MM-DD] Short rule**
   Do instead: concrete repeatable action.

## User Directives
1. **[YYYY-MM-DD] Directive**
   Do instead: exactly follow this preference.

Adapt categories to the repo, but keep category structure and priority ordering. Do not use raw journal-style entries.

Continuous Runbook Updates

Update during work whenever you learn something reusable.

What qualifies for inclusion:

  • Frequent gotchas or surprising behavior in this repo/toolchain.
  • User directives that affect repeated behavior.
  • Non-obvious tactics that repeatedly work.

What does not qualify:

  • One-off timeline notes.
  • Verbose postmortems without reusable action.
  • Pure mistake logs without "Do instead" guidance.

Entry format requirements:

Read the full file on GitHub · 100 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 100 lines · 71 tokens per session scan A e0f05f93d818

Subscribe to this mod's changes

napkin is a skill published in the GitHub repository christopherekfeldt/mcp-bitbucket-dc (13 stars, last pushed 14d ago), licensed MIT. It adds 71 tokens to every session and 712 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to napkin, differing in 9 lines, and is treated as a copy.

Related

Other skills, from other repositories

media-ingest

Ingest video, audio, PDF, book, screenshot, and GitHub repo content into the brain. Multi-format handling with entity extraction and backlink propagation. Covers video-ingest, youtube-ingest, and book-ingest subtypes.

garrytan/gbrain · 52 tokens

mem0-oss-to-platform

Plan and then execute a migration of a project from the mem0 open-source / self-hosted SDK (the local Memory class) to the mem0 Platform / hosted / managed SDK (the MemoryClient class). Use this whenever a developer wants to move, switch, or migrate their mem0 usage off OSS/self-hosted to the hosted API — e.g.…

mem0ai/mem0 · 273 tokens

Cortex

Operate Cortex, the LifeOS memory system — the typed Knowledge Archive (People, Companies, Ideas, Research with typed related: links) plus recall of prior work sessions, ISAs, and conversations. Search, add, harvest, develop, ingest, distill, graph-navigate, recall. USE WHEN cortex, knowledge, knowledge base, search…

danielmiessler/LifeOS · 196 tokens

memory

Use when the user asks to remember, recall, forget, update, search, or inspect durable OpenSquilla memory, including profile facts in USER.md and long-term notes in MEMORY.md or memory//.md.

opensquilla/opensquilla · 44 tokens

ha-data-stores

Map of Hope Agent's local data stores and safe read-only query workflow. Use when the user asks where Hope Agent stores data, wants to inspect sessions/messages/memory/logs/background jobs/knowledge indexes/settings, asks the model to query local app data, or debugging requires checking persisted state. Trigger…

shiwenwen/hope-agent · 115 tokens

establishing-project-context

Use when the user asks to establish shared project language, or project work exposes a conflicting, renamed, or deprecated domain term that needs active semantic modeling. Routine small tasks stay on the fast path.

GanyuanRan/Aegis · 45 tokens