What is flanner-plan?

A tool for saving and revising plans, designs, architecture notes, migrations, or RFCs as managed, versioned documents. An RFC is a written proposal for discussion and approval.

Use it to create or update tracked planning documents through flanner instead of writing them directly.

It keeps planning documents in the repository's required location and format, with standard metadata and version tracking.

How jaysonmulwa/flanner configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to jaysonmulwa/flanner. 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/jaysonmulwa/flanner/main/.claude/skills/flanner-plan/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/jaysonmulwa/flanner

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jaysonmulwa/flanner/flanner-plan/github.svg)](https://agentmods.dev/skills/jaysonmulwa/flanner/flanner-plan)

Your own site

<a href="https://agentmods.dev/skills/jaysonmulwa/flanner/flanner-plan"><img src="https://agentmods.dev/badge/skills/jaysonmulwa/flanner/flanner-plan/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/jaysonmulwa/flanner/flanner-plan"><img src="https://agentmods.dev/badge/skills/jaysonmulwa/flanner/flanner-plan.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 267 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.

Model	Per session	Once invoked
Fable 5.1	$0.00071	$0.00267
Opus 5.5	$0.00028	$0.00107
Sonnet 5.5	$0.00014	$0.00053
Haiku 4.5	$0.00007	$0.00027

Measured 2mo ago against content hash de9c3d4cd553, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

flanner-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 2mo 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/flanner-plan/SKILL.md · 26 lines

What it actually says

Saving a plan through flanner

This repo manages planning docs with flanner. Do not write them with the Write tool; the plan directory and header are handled by the MCP tools.

Confirm intent. If it is ambiguous whether a markdown file is a plan (versus a README, changelog, or notes), ask the user before proceeding.
Resolve the target with get_plan_config and list_projects.
Create with create_plan_file_tool(project_id, name, content), passing the markdown body WITHOUT frontmatter; the header is added for you.
Revise an existing plan with update_plan_file_tool(plan_file_id, content), which bumps the version and re-hashes the content.

Never hand-write the YAML header, and never place plan files outside the directory reported by get_plan_config.

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.

2mo ago First seen · 26 lines · 71 tokens per session scan A de9c3d4cd553

Subscribe to this mod's changes

flanner-plan is a skill published in the GitHub repository jaysonmulwa/flanner (5 stars, last pushed 1mo ago), licensed MIT. It adds 71 tokens to every session and 267 once invoked, about $0.0003 per session on Opus 5.5. 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.

Collaboration Planning Writing and docs claude cli markdown mcp

flanner-plan next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
flanner-planjaysonmulwa/flanner	Skill	5	1mo ago	MIT	A	71	Claude Code
llmwikiatomicstrata/llm-wiki-compiler	Skill	2.2k	7d ago	MIT	A	66	Claude Code, Codex
crit-storytomasz-tomczyk/crit	Skill	1.3k	today	MIT	A	47	Claude Code, Codex
processing-markdownharehare/mq	Skill	1.1k	today	MIT	A	36	Claude Code, Codex
web-scrapingharehare/mq	Skill	1.1k	today	MIT	A	89	Claude Code, Codex
preview-designegregore-labs/egregore	Skill	293	yesterday	MIT	A	71	Claude Code
larksnap-fetchAmbroseX/larksnap	Skill	314	16d ago	Apache-2.0	A	111	Claude Code, Codex

flanner: Skill for Claude Code