Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/kvdm-co-pilot/create-cmpnpx agentmods add skills/kvdm-co-pilot/create-cmp/add-featureWrote 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/kvdm-co-pilot/create-cmp/add-feature)<a href="https://agentmods.dev/skills/kvdm-co-pilot/create-cmp/add-feature"><img src="https://agentmods.dev/badge/skills/kvdm-co-pilot/create-cmp/add-feature/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.
<a href="https://agentmods.dev/skills/kvdm-co-pilot/create-cmp/add-feature"><img src="https://agentmods.dev/badge/skills/kvdm-co-pilot/create-cmp/add-feature.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00169 | $0.02619 |
| Opus 5.5 | $0.00068 | $0.01048 |
| Sonnet 5.5 | $0.00034 | $0.00524 |
| Haiku 4.5 | $0.00017 | $0.00262 |
Grade A, and why
add-feature 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 1mo 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 — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.
add-feature — stamp a conforming vertical slice
Spec-first, deterministic-stamp, gate-proven. The script (
qa/scaffold-feature.mjs) does the mechanical work — copy the exemplar file set, whole-word identifier rename, anchor injection into the three shared files (four when the inspector shipped — the preview registry too). You (the AI) only refine spec wording and adapt the feature to its real shape. You are not done untilnode qa/verify.mjsPASSes and the receipt is committed — see this project'sCLAUDE.md.
Step 0 — name the lane, out loud, before anything else
Every post-genesis change enters through one of two lanes (CLAUDE.md §"After genesis"),
and the human must be told which one this request is taking, in your first reply — one
or two plain sentences before any tool runs: what you understood the change to be, which
lane, and why. Never route silently; the human can overrule the triage in a word.
- Brief lane — the request carries decisions a future contributor could plausibly
"simplify" away, or blast radius into other governed artifacts. Say so, e.g.: "This
carries real decisions (day-boundary rules, scheduling semantics) — I'll draft a feature
brief at
docs/features/<name>.mdwith the open decisions for you to close and sign BEFORE I stamp anything." Only after the brief is signed does this skill's stamping start — and if the feature has a UI surface, the design gate comes next, before the spec: draft the screens on stub data, render them, and stop for the human's signature onfeature-design:<name>(brief → design → spec → build). A human signs rendered screens, never a description of screens. - Direct lane — an ordinary feature with no decisions worth recording. Say so, e.g.: "Straightforward slice, no decisions worth a brief — direct lane: spec clauses for your confirmation, then I stamp and prove." Then continue with Step 1 below.
The clone source is configurable
The stamper clones from the project's configured exemplar — qa/approvals.json's
top-level "exemplarFeature" key (absent ⇒ home, the shipped exemplar). This is the same
resolution the approvals registry uses for the governed exemplar-feature artifact, so what
gets stamped is always exactly what the human signed off on. After the genesis walk retargets
exemplarFeature to the user's own first feature, every stamp from then on clones their
pattern in their domain language — do not assume home still exists as the exemplar; read
the config (or just run the stamper: it resolves the source itself).
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.
- 1mo ago Changed · +4 lines c323682697f2
- 1mo ago First seen · 181 lines · 169 tokens per session scan A ffb4070c1ba3
add-feature is a skill published in the GitHub repository kvdm-co-pilot/create-cmp (0 stars, last pushed 3d ago), licensed MIT. It adds 169 tokens to every session and 2,619 once invoked, about $0.0007 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.
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