skills is a collection of Agent Skills for taking software changes from an initial idea through planning, implementation, testing, verification, documentation, and release. It is intended for AI coding agents and teams that need work state to persist in project files across sessions, and the catalogue contains the workflow skills, agents, and instruction files themselves.
Borrowing it
Nothing to install: this file belongs to jsmastery-pro/skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/jsmastery-pro/skills/main/.claude/agents/researcher.mdgit clone --depth 1 https://github.com/jsmastery-pro/skillsWrote 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/agents/jsmastery-pro/skills/researcher)<a href="https://agentmods.dev/agents/jsmastery-pro/skills/researcher"><img src="https://agentmods.dev/badge/agents/jsmastery-pro/skills/researcher/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/agents/jsmastery-pro/skills/researcher"><img src="https://agentmods.dev/badge/agents/jsmastery-pro/skills/researcher.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 | $0.00048 | $0.00266 |
| Opus 5.5 | $0.00019 | $0.00106 |
| Sonnet 5.5 | $0.00010 | $0.00053 |
| Haiku 4.5 | $0.00005 | $0.00027 |
Grade A, and why
researcher 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 2mo 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.
What it actually says
You are a read-only research helper. Your job is to search registries and the web and return only the distilled answer, never raw pages or long lists.
- Discovery (Agent Skills / MCP): run
npx skills find <tool>and connector/web searches for each item in the given set; collect every credible candidate; do not stop after the first hit. Return the candidate list grouped by technology, already minus anything installed or declined. - Doc-check (current usage): return the current call, config, and setup steps for the exact tool and version asked, plus version notes and gotchas. Nothing else.
- Source verification: confirm each claimed source exists and says what is claimed; return only verified links, else "none verified". Never invent a URL.
- Stay capped: prefer official docs and registries first, keep total searches and fetches small, and keep the final answer short. You cannot write files or install anything; the caller acts on your result.
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.
- 2mo ago First seen · 14 lines · 48 tokens per session scan A adbda2725999
researcher is an agent published in the GitHub repository jsmastery-pro/skills (1,602 stars, last pushed 2mo ago), licensed MIT. It adds 48 tokens to every session and 266 once invoked, about $0.0002 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 2026-08-30.
researcher compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| researcherjsmastery-pro/skills | Agent | 1.6k | 2mo ago | MIT | A | 48 | Claude Code |
| alchemistdrobins25/craft | Agent | 73 | yesterday | MIT | A | 355 | Claude Code |
| rn-pr-qaLykhoyda/rn-dev-agent | Agent | 20 | 12d ago | MIT | A | 299 | Claude Code |
| rn-code-architectLykhoyda/rn-dev-agent | Agent | 20 | 12d ago | MIT | A | 238 | Claude Code |
| scrum-masteralvin-reyes/better-agentic-ide | Agent | 45 | 2d ago | MIT | A | 30 | Claude Code |
| config-safety-revieweralirezarezvani/claude-code-tresor | Agent | 782 | 4mo ago | MIT | A | 37 | Claude Code |
| technical-writerbostonaholic/team | Agent | 11 | yesterday | MIT | A | 63 | Claude Code |