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Agent skill

Ijfw Plan Check

by FerroxLabs in FerroxLabs/ijfw

Donahoe Loop audit gate before execution. An agent skill from FerroxLabs/ijfw.

MITAuto-check passed

Install Ijfw Plan Check

skills CLI
$ npx skills add FerroxLabs/ijfw --skill ijfw-plan-check -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install FerroxLabs/ijfw ijfw-plan-check --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/FerroxLabs/ijfw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/codex/skills/ijfw-plan-check .claude/skills/ijfw-plan-check && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
ijfw-plan-check
GitHub stars
212
Token cost
~629 tokens
SKILL.md length
202 words
Files
1
Skills in repo
38
Repo updated
First seen
Licence
MIT

At a glance

Donahoe Loop audit gate before execution. An agent skill from FerroxLabs/ijfw.

  • Works in 6 steps: Locate the plan → Goal-backward analysis → Scope leak check → …
  • SKILL.md covers Step 1 -- Locate the plan, Step 2 -- Goal-backward analysis, Step 3 -- Scope leak check and Step 4 -- Risk surface, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Ijfw Plan Check is an agent skill from FerroxLabs/ijfw. Donahoe Loop audit gate before execution. Trigger: 'audit plan', 'check plan', 'review plan', 'plan audit', 'plan check', 'before we build', 'before execution', 'validate the plan', 'is this plan solid', 'plan review'. Owns pre-execution audit intent -- fires before any foreign plan-checker.

Its SKILL.md is about 630 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: IJFW — It Just Fcking Works. Ferrox Labs' local-first infrastructure for AI coding agents: shared memory, smart routing, multi-AI cross-audits, disciplined workflow. The licence is MIT.

Example prompts

  • “audit plan”
  • “check plan”
  • “review plan”
  • “/ijfw-plan-check”

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Locate the plan
  2. Goal-backward analysis
  3. Scope leak check
  4. Risk surface
  5. Dependency ordering
  6. Verdict

What it can do on your machine

Read from SKILL.md and the folder at commit eda62f3. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are gate-result).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Ijfw Plan Check loads about 629 tokens when it runs. Until then it costs about 77 tokens; SKILL.md has 202 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~77
When it runs · the whole SKILL.md, loaded when a task matches
~629

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from FerroxLabs/ijfw at commit eda62f3, republished under its MIT licence (© FerroxLabs). 202 words, ~629 tokens.

Download SKILL.mdSave it as .claude/skills/ijfw-plan-check/SKILL.md (or your agent's skills folder).
name
ijfw-plan-check
description
Donahoe Loop audit gate before execution. Trigger: 'audit plan', 'check plan', 'review plan', 'plan audit', 'plan check', 'before we build', 'before execution', 'validate the plan', 'is this plan solid', 'plan review'. Owns pre-execution audit intent -- fires before any foreign plan-checker.

Pre-execution audit gate. Runs before EXECUTE. Verdict is decisive.

Step 1 -- Locate the plan

Check in order: user-specified path, .ijfw/memory/plan.md, .planning/**/PLAN.md. If none found: No plan doc located. Paste the plan or give the path. Do not proceed.

Step 2 -- Goal-backward analysis

Read success criteria from .ijfw/memory/brief.md if present. For every task: does it trace to a criterion? Tasks with no traceable criterion are scope drift -- flag them.

Step 3 -- Scope leak check

Anything in the plan not in the brief is a scope leak. List each with task name + reason. If no brief exists, flag the absence as a risk.

Step 4 -- Risk surface

Flag tasks that are under-specified (no verify step, no file path), half-baked (depends on an undecided decision), or destructive (no rollback note).

Step 5 -- Dependency ordering

If task B needs task A's output but B is listed before A, flag the inversion with names.

Step 6 -- Verdict

Plan audit: <N> tasks reviewed
Goal alignment:   <N> trace to criteria / <N> need attention
Scope:            clean | <N> leak(s)
Risk surface:     <N> need sharpening
Dependency order: correct | <N> inversion(s)

Verdict: PASS | FLAG | BLOCK

Must-fix before execution (FLAG):
  1. <task> -- <file>:<line> -- <fix>

Rework needed (BLOCK):
  1. <issue> -- <reason>
  • PASS: proceed to EXECUTE.
  • FLAG: fix numbered items, then proceed.
  • BLOCK: rework required. Do not execute until re-audited.

Closer: You have a <PASS|FLAG|BLOCK> -- <next action>.

Output contract

Emit a gate-result block as the LAST content of your output. Nothing after it. Use gate="plan-check". Statuses: PASS | CONDITIONAL | WARN | FLAG | FAIL.

Format:

gate-result
{
  "schema_version": "1.0",
  "gate": "plan-check",
  "status": "<STATUS>",
  "project_type": "<from project-type-detector>",
  "lenses": [],
  "affected_artifacts": [],
  "accounting": {"duration_ms": 0, "lenses_invoked": 0, "cost_usd": null},
  "remediation": [],
  "receipts_ref": null,
  "supersedes": null,
  "gate_id": "<gate-with-colons-replaced-by-dashes>-<ts>-<rand4>",
  "emitted_at": "<ISO-8601>"
}

© FerroxLabs, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in codex/skills/ijfw-plan-check of FerroxLabs/ijfw.

Open the folder on GitHubat commit eda62f3

Compare with similar skills

Ijfw Plan Check next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Ijfw Plan Check compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Ijfw Plan Check this skillFerroxLabs/ijfw212—~629Automated safety check: PassMIT
Gate Testsvercel/next.js143k—~2.7kAutomated safety check: PassMIT
Gateplugin87/ux-ui-agent-skills1.6k—~532Automated safety check: PassMIT
Brain Ingest Gategarrytan/gbrain31k—~3.9kAutomated safety check: PassMIT
Delivery Gateaffaan-m/ECC276k—~1.3kAutomated safety check: PassMIT
Bill Gatessickn33/agentic-awesome-skills47k2 repos~352Automated safety check: PassMIT

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All 38 skills in this repo

  • Ijfw Agents Md

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  • Ijfw Cross Audit

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    212 GitHub stars~594 tokensUpdated 4 days ago
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Questions about Ijfw Plan Check

What does Ijfw Plan Check do?

Donahoe Loop audit gate before execution. An agent skill from FerroxLabs/ijfw. Ijfw Plan Check is an agent skill from FerroxLabs/ijfw. Donahoe Loop audit gate before execution.

How do I install Ijfw Plan Check in Claude Code?

Run `npx skills add FerroxLabs/ijfw --skill ijfw-plan-check -a claude-code`. Or copy the skill folder (codex/skills/ijfw-plan-check in FerroxLabs/ijfw) into .claude/skills/ijfw-plan-check in your project. Claude Code loads it when a task matches its description.

How do I install Ijfw Plan Check in Codex?

Run `npx skills add FerroxLabs/ijfw --skill ijfw-plan-check -a codex`. Or copy the skill folder (codex/skills/ijfw-plan-check in FerroxLabs/ijfw) into .agents/skills/ijfw-plan-check in your project. Codex loads it when a task matches its description.

Can I use Ijfw Plan Check in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add FerroxLabs/ijfw --skill ijfw-plan-check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ijfw-plan-check, .gemini/skills/ijfw-plan-check, .github/skills/ijfw-plan-check and .opencode/skills/ijfw-plan-check in your project.

What does Ijfw Plan Check need to run?

SKILL.md names no scripts, command-line tools or credentials: Ijfw Plan Check is instructions for the agent only.

Does Ijfw Plan Check access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Ijfw Plan Check safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Ijfw Plan Check use?

Ijfw Plan Check is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Ijfw Plan Check use?

About 629 tokens (SKILL.md is roughly 2.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Ijfw Plan Check?

Skills that share tags, products or a category with Ijfw Plan Check: Gate Tests (vercel/next.js, 143k stars), Gate (plugin87/ux-ui-agent-skills, 1.6k stars), Brain Ingest Gate (garrytan/gbrain, 31k stars) and Delivery Gate (affaan-m/ECC, 276k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Ijfw Plan Check?

FerroxLabs (a GitHub user) maintains it in FerroxLabs/ijfw, which has 212 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on October 5, 2026.

Source: FerroxLabs/ijfw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.