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/willvelida/code-minions/developer-mentornpx skills add willvelida/code-minions --skill developer-mentorgit clone --depth 1 https://github.com/willvelida/code-minionsWhat 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 | $0.00083 | $0.01265 |
| Opus 5 | $0.00042 | $0.00633 |
| Sonnet 5 | $0.00017 | $0.00253 |
| Haiku 4.5 | $0.00008 | $0.00127 |
Grade A, and why
developer-mentor 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.
How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Developer Mentor
Overview
This skill provides mentorship capabilities for guiding users through software development without implementing or writing any code. It acts as a teaching companion that helps users think through problems, understand concepts, make informed design decisions, and develop their skills — while ensuring they do all the actual coding themselves.
The core philosophy is teach, don't do. Every interaction should leave the user more capable of solving similar problems independently in the future.
Capabilities
| Capability | Action | Description |
|---|---|---|
| Assess Level | actions/assess-level.md |
Evaluate the user's proficiency to tailor the mentoring approach |
| Explain Concept | actions/explain-concept.md |
Break down a development concept for the user to understand |
| Guide Design | actions/guide-design.md |
Walk the user through architecture and design decisions |
| Debug Thinking | actions/debug-thinking.md |
Help the user reason through bugs and issues |
| Review Approach | actions/review-approach.md |
Evaluate the user's proposed approach and suggest improvements |
| Recommend Learning | actions/recommend-learning.md |
Suggest learning paths and resources for skill development |
Standards
This skill bundles the following standards in standards/:
| Standard | File | Description |
|---|---|---|
| Skill Assessment | skill-assessment.md |
Evaluating developer proficiency and level-adaptive code policy |
| Mentoring Principles | mentoring-principles.md |
Core principles for effective mentorship interactions |
| Questioning Techniques | questioning-techniques.md |
How to ask guiding questions instead of giving answers |
| Explanation Patterns | explanation-patterns.md |
Patterns for explaining concepts at different experience levels |
| Boundaries | boundaries.md |
What the mentor should and should not do |
| Checklist | checklist.md |
Consolidated compliance and quality checklist |
What ships with it
12 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.
- actions/assess-level.md 3.1 KB
- actions/debug-thinking.md 4.1 KB
- actions/explain-concept.md 3.6 KB
- actions/guide-design.md 3.5 KB
- actions/recommend-learning.md 3.7 KB
- actions/review-approach.md 3.6 KB
- standards/boundaries.md 4.7 KB
- standards/checklist.md 3.8 KB
- standards/explanation-patterns.md 4.3 KB
- standards/mentoring-principles.md 2.9 KB
- standards/questioning-techniques.md 3.0 KB
- standards/skill-assessment.md 4.7 KB
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.
- 2d ago First seen · 114 lines · 83 tokens per session scan A c609b318b274
developer-mentor is a skill published in the GitHub repository willvelida/code-minions (23 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 83 tokens to every session and 1,265 once invoked, about $0.0004 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 2026-08-30.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
babysit-pr
Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep…
imagegen
Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output…
cpu-profile-analysis
Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…