certify

certify is a skill for Claude Code from terrene-foundation/kailash-coc-claude-py. It costs 40 tokens per session (5,414 once invoked), scanned A, original, Apache-2.0.

A knowledge check for developers or consultants before they take on substantial repository work. It gives a briefing, asks questions from a curated set, and requires every answer to pass before certification.

In plain words
What is it for?
Use it when someone joins a project, returns after a long absence, or needs re-certification after a major architecture change.
Why use it?
It checks that a person understands the repository's important rules and current design instead of relying on assumptions or incomplete onboarding.

Skill for Claude Code

Written for Claude Code: PreToolUse hook event. Also seen: reads .claude/ paths; mentions CLAUDE.md.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node .claude/bin/validate-cert-bank.mjs specs/_certification.yaml.

Good fit Use it when someone joins a project, returns after a long absence, or needs re-certification after a major architecture change.

Compare 6 skills from other repositories ↓
Install

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.

Clone the repo
git clone --depth 1 https://github.com/terrene-foundation/kailash-coc-claude-py
agentmods
npx agentmods add skills/terrene-foundation/kailash-coc-claude-py/42-certify

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.

agentmods badge for certify

README.md
[![agentmods](https://agentmods.dev/badge/skills/terrene-foundation/kailash-coc-claude-py/42-certify/github.svg)](https://agentmods.dev/skills/terrene-foundation/kailash-coc-claude-py/42-certify)
Your own site
<a href="https://agentmods.dev/skills/terrene-foundation/kailash-coc-claude-py/42-certify"><img src="https://agentmods.dev/badge/skills/terrene-foundation/kailash-coc-claude-py/42-certify/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.

agentmods 80×15 button for certify

Your own site · 80×15
<a href="https://agentmods.dev/skills/terrene-foundation/kailash-coc-claude-py/42-certify"><img src="https://agentmods.dev/badge/skills/terrene-foundation/kailash-coc-claude-py/42-certify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,414 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 warn 7 Sept 2026
SkillSpector: 4 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Agent Snooping · line 8
    Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.
    Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
  • high Tool Misuse · line 104
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Tool Misuse · line 130
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • medium Prompt Injection · line 22
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
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 $0.00040 $0.05414
Opus 5 $0.00020 $0.02707
Sonnet 5 $0.00008 $0.01083
Haiku 4.5 $0.00004 $0.00541

Measured 9d ago against content hash c8ecc54299f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

certify 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 9d 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/42-certify/SKILL.md · 303 lines

How it starts

The opening of the file, as written. The whole thing — 303 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/certify — knowledge gate for new devs/consultants

This skill is the procedural detail for the /certify command (.claude/commands/certify.md). The command is the entry point; this skill is the runbook the orchestrator follows. Three phases — Brief → Probe → Gate, gated at 100% — behind a Phase 0 entry gate (identity + bank validation + operator consent) that MUST clear first.

When to use

  • A new dev or consultant joins the repo and is about to claim their first piece of non-trivial work.
  • An existing operator returns after a long absence (>30 days) and the question bank or critical-rule corpus has materially changed since their last certification.
  • A repo owner wants to re-certify the whole team after a major architectural shift recorded in specs/.

/certify does NOT replace /onboard/onboard answers "what's the current team state" (read-only, ~5 min). /certify answers "does this person KNOW the critical surface well enough to claim work" (write-receipts + journal pass, ~30–60 min). Run /onboard first; then /certify.

Read-only vs state-write contract

/certify writes state, but a narrow set:

Surface Phase Write?
workspaces/_certify/.pending/* Brief Yes — per-section read receipts (scrubbed per user-flow-validation.md MUST-6); OUTSIDE the journal/ subtree (see § note)
In-session probe state Probe No persisted file; tally lives in orchestrator context
journal/NNNN-DECISION-certify-pass-*.md Pass (gate met) Yes — committed pass receipt, under a covering codify lease
journal/NNNN-DECISION-certify-defer-*.md Abandon mid-gate Yes — deferral receipt (DECISION-typed; DEFER is not a journal-reserve.js::VALID_TYPES member), under a covering codify lease
codify lease (codify/<display_id>-<date>) Pass / Abandon Yes — acquired before the journal write, released after (§ Pass receipt Steps 1.5/5)
posture.json (n/a — no posture write) No — trust-posture machinery already enforces L2 for unrostered operators
operators.roster.json (n/a — no roster write) No — registration PRECEDES certification (the roster row already exists); pass gates /claim

Read the full file on GitHub · 303 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. 9d ago First seen · 303 lines · 40 tokens per session scan A c8ecc54299f3

Subscribe to this mod's changes

certify is a skill published in the GitHub repository terrene-foundation/kailash-coc-claude-py (12 stars, last pushed 24d ago), licensed Apache-2.0. It adds 40 tokens to every session and 5,414 once invoked, about $0.0002 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 2026-09-03.

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