skill-b

A skill that uses a shared test-strategy assignment file and checks whether referenced paths are safe and available.

In plain words
What is it for?
Loading the shared assignment file, rejecting paths that point outside the permitted directory, and reporting missing governance or support files.
Why use it?
It prevents a path from escaping the expected project area and identifies required files that are missing.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/agentic-development/adev-plugin/skill-b
Any agent
npx skills add agentic-development/adev-plugin --skill skill-b
Clone the repo
git clone --depth 1 https://github.com/agentic-development/adev-plugin

Made for: Claude Code, Codex.

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 62 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00062
Opus 5 $0.00000 $0.00031
Sonnet 5 $0.00000 $0.00012
Haiku 4.5 $0.00000 $0.00006

Measured 2d ago against content hash 666cde65524f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-b 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 2d 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.

tests/repomap/fixtures/doc-refs/skills/skill-b/SKILL.md · 8 lines

What it actually says

Skill B

Uses lib/test-strategies/assignment.mjs (same file referenced by Skill A).

Tries to escape with lib/../../outside/path.mjs — this must be rejected.

Mentions a missing file lib/governance/does-not-exist.mjs.

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. 2d ago First seen · 8 lines · 0 tokens per session scan A 666cde65524f

Subscribe to this mod's changes

skill-b is a skill published in the GitHub repository agentic-development/adev-plugin (11 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 62 tokens. 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 2026-08-30.

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