luongnv89/claude-howto is a visual, example-based guide to Claude Code, a coding tool that supports agents, hooks, skills, slash commands, and MCP servers. Developers use it to learn Claude Code through practical workflows and copyable templates, including the commands, agents, skills, plugins, and instructions catalogued here.
Getting it into your agent
There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.
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.
[](https://agentmods.dev/skills/luongnv89/claude-howto/self-assessment)<a href="https://agentmods.dev/skills/luongnv89/claude-howto/self-assessment"><img src="https://agentmods.dev/badge/skills/luongnv89/claude-howto/self-assessment/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/luongnv89/claude-howto/self-assessment"><img src="https://agentmods.dev/badge/skills/luongnv89/claude-howto/self-assessment.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 | $0.00099 | $0.05541 |
| Opus 5 | $0.00049 | $0.02771 |
| Sonnet 5 | $0.00020 | $0.01108 |
| Haiku 4.5 | $0.00010 | $0.00554 |
Grade C, and why
self-assessment scanned grade C with 2 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 5d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
2. "Set up hooks" — Configured hooks in ~/.claude/settings.json Reads MCP configurationmediumAgent snooping
mcp.json carries server URLs and auth tokens; reading it lets a mod discover and abuse other integrations.
- Focus on: Project-scope .mcp.json (requires team approval), OAuth 2.0 auth, MCP resources with `@server:resource` mentions, Tool Search (ENABLE_TOOL_SEARCH), `claude mcp serve`, output limits (10,000 tokens warning; 25 Copies of this mod
1 near-identical copy found in the catalogue:
- self-assessment — 86% identical, 44 lines differ
How it starts
The opening of the file, as written. The whole thing — 438 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Self-Assessment & Learning Path Advisor
Comprehensive interactive assessment that evaluates Claude Code proficiency across 10 feature areas, identifies specific skill gaps, and generates a personalized learning path to level up.
Instructions
Step 1: Welcome & Choose Assessment Mode
Present the user with a choice of assessment depth:
Use AskUserQuestion with these options:
- Quick Assessment — "8 questions, ~2 minutes. Determines your overall level (Beginner/Intermediate/Advanced) and gives a learning path."
- Deep Assessment — "5 categories with detailed questions, ~5 minutes. Gives per-topic skill scores, identifies specific gaps, and builds a prioritized learning path."
If user chooses Quick Assessment, go to Step 2A. If user chooses Deep Assessment, go to Step 2B.
Step 2A: Quick Assessment
Present TWO multi-select questions (AskUserQuestion supports max 4 options each):
Question 1 (header: "Basics"): "Part 1/2: Which of these Claude Code skills do you already have?" Options:
- "Start Claude Code and chat" — I can run
claudeand interact with it - "Created/edited CLAUDE.md" — I have set up project or user memory
- "Used 3+ slash commands" — e.g., /help, /compact, /model, /clear
- "Created custom command/skill" — Written a SKILL.md or custom command file
Question 2 (header: "Advanced"): "Part 2/2: Which of these advanced skills do you have?" Options:
- "Configured an MCP server" — e.g., GitHub, database, or other external data source
- "Set up hooks" — Configured hooks in ~/.claude/settings.json
- "Created/used subagents" — Used .claude/agents/ for task delegation
- "Used print mode (claude -p)" — Used
claude -pfor non-interactive or CI/CD use
Scoring:
- 0-2 total = Level 1: Beginner
- 3-5 total = Level 2: Intermediate
- 6-8 total = Level 3: Advanced
Go to Step 3 with the level result, listing which specific items were NOT checked as gaps.
Step 2B: Deep Assessment
Present 5 rounds of questions, one AskUserQuestion call per round. Each round covers 2 related feature areas. Use multi-select for all rounds.
What ships with it
4 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.
- 5d ago Changed 23f52651b9a8
- 10d ago First seen · 438 lines · 99 tokens per session scan C 064d915119ce
self-assessment is a skill published in the GitHub repository luongnv89/claude-howto (41,422 stars, last pushed 4d ago), licensed MIT. It adds 99 tokens to every session and 5,541 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 2 findings (reads agent configuration directories, reads mcp configuration). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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