ijfw-plan

ijfw-plan is a skill for Claude Code from FerroxLabs/ijfw. It costs 95 tokens per session (2,355 once invoked), scanned A, original, MIT.

A planning tool that turns a short brief into a written PLAN.md. The plan breaks work into tasks, shows which tasks depend on others, and defines how success will be checked.

In plain words
What is it for?
Use it to create an executable plan from a brief, existing specification, or research notes. It can organize tasks into dependency waves and record success criteria.
Why use it?
It gives an unclear request a concrete sequence of work instead of leaving decisions and dependencies scattered across conversation notes. It can be used for software, books, campaigns, design work, or research.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions subagents; names the AskUserQuestion tool; positional $N argument.

Part of the ijfw plugin — 34 skills, 22 commands, 37 agents, 6 hooks shipped together

Good fit Use it to create an executable plan from a brief, existing specification, or research notes. It can organize tasks into dependency waves and record success criteria.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ferroxlabs/ijfw/ijfw-plan
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 FerroxLabs/ijfw --skill ijfw-plan
Clone the repo
git clone --depth 1 https://github.com/FerroxLabs/ijfw

Made for: Claude Code.

Or install ijfw, the plugin that ships this one along with the rest of its 34 skills, 22 commands, 37 agents, 6 hooks.

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 ijfw-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/ferroxlabs/ijfw/ijfw-plan.svg)](https://agentmods.dev/skills/ferroxlabs/ijfw/ijfw-plan)
Your own site
<a href="https://agentmods.dev/skills/ferroxlabs/ijfw/ijfw-plan"><img src="https://agentmods.dev/badge/skills/ferroxlabs/ijfw/ijfw-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,355 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00095 $0.02355
Opus 5 $0.00048 $0.01177
Sonnet 5 $0.00019 $0.00471
Haiku 4.5 $0.00010 $0.00235

Measured 3d ago against content hash 2d74a2545a7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

ijfw-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 3d 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/ijfw-plan/SKILL.md · 220 lines

How it starts

The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.

IJFW Plan — domain-agnostic plan authoring

You are the orchestrator-facing trigger that turns a brief (and optionally a SPEC.md / research notes) into an executable PLAN.md. Plan output is the same shape across domains: software slice, book chapter, marketing campaign, design system release, research milestone. The deliverables differ; the structure doesn't.

This skill is the body for the /ijfw-plan slash command. Both paths land here. Slash invocation may pass [brief description] as $1.

When to fire

  1. User explicitly asks: "plan this", "plan it", "make a plan", "let's plan", "draft a plan", "break this down".
  2. /ijfw-plan slash command is invoked.
  3. ijfw-workflow Deep path enters the Plan gate after Discovery + Research.
  4. ijfw-spec-phase has emitted SPEC.md and the user wants HOW next.

If .ijfw/memory/brief.md is missing AND no SPEC.md exists for the active slice, ask one clarifying question first: What are we planning? (one sentence). Never guess.

Inputs (read in order, skip missing)

  1. .ijfw/memory/brief.md — original ask + success criteria.
  2. .ijfw/memory/research.md — anything Discovery / Research surfaced.
  3. .planning/<milestone>/<phase>/SPEC.md — locked acceptance criteria.
  4. .planning/<milestone>/<phase>/CONTEXT.md — decisions resolved in discuss.
  5. .planning/ROADMAP.md — where this slice sits in the bigger arc.
  6. .planning/PROJECT.md — non-negotiables.

Detect domain from brief language and project layout:

  • Software: package.json, pyproject.toml, Cargo.toml, source dirs.
  • Book / chapter: manuscript/, chapters/, outline.md, prose-heavy brief.
  • Campaign / launch: campaign/, assets/, calendar / channel language.
  • Design system: tokens/, components/, design-ops language.
  • Research: notes/, papers/, "review the literature" framing.

Domain choice changes vocabulary, NOT the output shape.

Output location

If a phase is active (.ijfw/state/active-milestone + .ijfw/state/active-phase both exist), write to .planning/<milestone>/<phase>/PLAN.md and also mirror the task list to .ijfw/memory/plan.md for the runtime gate to read.

Read the full file on GitHub · 220 lines

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. 3d ago First seen · 220 lines · 95 tokens per session scan A 2d74a2545a7e

Subscribe to this mod's changes

ijfw-plan is a skill published in the GitHub repository FerroxLabs/ijfw (210 stars, last pushed yesterday), licensed MIT. It adds 95 tokens to every session and 2,355 once invoked, about $0.0005 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 2026-09-05.

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