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.
npx agentmods add skills/momentmaker/kaijutsu/scope-checknpx skills add momentmaker/kaijutsu --skill scope-checkgit clone --depth 1 https://github.com/momentmaker/kaijutsuWrote 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.
[](https://agentmods.dev/skills/momentmaker/kaijutsu/scope-check)<a href="https://agentmods.dev/skills/momentmaker/kaijutsu/scope-check"><img src="https://agentmods.dev/badge/skills/momentmaker/kaijutsu/scope-check.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00060 | $0.01188 |
| Opus 5 | $0.00030 | $0.00594 |
| Sonnet 5 | $0.00012 | $0.00238 |
| Haiku 4.5 | $0.00006 | $0.00119 |
Grade A, and why
scope-check 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Scope Check
Hold up a mirror — compare the original task intent to the actual work done. Present data, not judgment.
Step 1: Find the Original Intent
Check these sources in order. Use the first one found:
- Active plan file — search your agent's plan/scratch directory for a plan referencing this project. Read the Goal and Context sections.
- Task list — if your agent has a tracked task list, the earliest task often captures the original intent.
- Ask the user — if neither exists, ask: "What was the original task or goal? I want to compare it to what's actually happened."
Step 2: Measure the Actual Work
Detect default branch first: git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null | sed 's|refs/remotes/origin/||' — fall back to main if unset.
Run in parallel:
git diff --stat— unstaged changesgit diff --cached --stat— staged changesgit diff {default-branch}...HEAD --stat— all changes on this branch vs default (skip if current branch IS the default branch)git ls-files --others --exclude-standard | wc -l— new untracked files- Count new vs modified files
- Sum lines added/removed
Step 3: Categorize by Concern
Group changed files by their top-level directory or domain:
- Read the list of changed files
- Group by the first 2 path segments (e.g.,
Models/Proximity/,Scenes/ActiveWalk/,src/handlers/) - Count files and lines per group
Step 4: Check Time Spent
If your agent keeps a session log, count sessions and estimate total time spent on this project today and yesterday.
Step 4.5: Cost-tier classification
For each changed file, classify by reasoning space per the Agentic Coding Flywheel cost model:
| Tier | What it touches | Rework cost |
|---|---|---|
| plan-space | design docs, plans, architecture markdown, ADRs, READMEs | 1× |
| bead-space | task lists, scope-of-work specs, project tracking, IMPLEMENTATION_PLAN.md, .beads/* |
5× |
| code-space | actual implementation files, tests, configs | 25× |
What ships with it
3 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.
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.
- 6d ago First seen · 105 lines · 60 tokens per session scan A 63583f0809b9
scope-check is a skill published in the GitHub repository momentmaker/kaijutsu (3 stars, last pushed 2mo ago), licensed MIT. It adds 60 tokens to every session and 1,188 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.
Other skills, from other repositories
sw-handoff
Write a portable, secret-scrubbed handoff doc plus a diff of your uncommitted edits so another tool or machine resumes where you stopped. Use for "handoff", "out of tokens", "switch to Codex".
tokf-discover
Find missed token savings by scanning AI coding session files for commands that ran without tokf filtering.
handoff
Write a portable, secret-scrubbed handoff doc so this work can continue in any AI tool or on any machine. Use when saying "handoff", "running out of tokens", or "continue elsewhere".
amq-spec
Parallel-research-then-converge design workflow between two agents. Use this skill when the user wants two agents to independently think through a design problem before aligning on a solution — "spec X with codex", "design X together", "both agents think through X", "brainstorm architecture together", "parallel…
notion-cli
Work with Notion from the terminal using the notion CLI. Use when the user needs to read, create, update, query, or manage Notion pages, databases, blocks, comments, users, or files programmatically. Covers the entire Notion API with 50+ commands. Triggers: Notion workspace automation, database queries, page creation…
feishu-openapi-skill
Operate Feishu or Lark IM APIs through UXC with a curated OpenAPI schema, tenant-token bearer auth, and chat/message guardrails.