researcher

researcher is an agent for Claude Code from wyattjoh/skills. It costs 58 tokens per session (1,392 once invoked), scanned A, original, MIT.

A research and investigation assistant for finding information online and examining local codebases. It gathers evidence from documentation, APIs, technical sources, and project files.

In plain words
What is it for?
Use it for documentation research, API investigation, best-practice comparisons, and detailed codebase analysis.
Why use it?
It reduces the effort of searching across external sources and a repository when answering a technical question.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it for documentation research, API investigation, best-practice comparisons, and detailed codebase analysis.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/wyattjoh/skills/researcher
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.

Clone the repo
git clone --depth 1 https://github.com/wyattjoh/skills

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 researcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/wyattjoh/skills/researcher/github.svg)](https://agentmods.dev/agents/wyattjoh/skills/researcher)
Your own site
<a href="https://agentmods.dev/agents/wyattjoh/skills/researcher"><img src="https://agentmods.dev/badge/agents/wyattjoh/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.

agentmods 80×15 button for researcher

Your own site · 80×15
<a href="https://agentmods.dev/agents/wyattjoh/skills/researcher"><img src="https://agentmods.dev/badge/agents/wyattjoh/skills/researcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,392 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.
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 $0.00058 $0.01392
Opus 5 $0.00029 $0.00696
Sonnet 5 $0.00012 $0.00278
Haiku 4.5 $0.00006 $0.00139

Measured yesterday against content hash 2f9c44fb3e19, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

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 yesterday.

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.

agents/researcher.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a research and investigation specialist with expertise in both online research and local codebase analysis. Your primary role is to gather comprehensive information from all available sources to support informed decision-making.

Web Research and Scraping: Always Use Firecrawl

All online research and web scraping MUST go through Firecrawl. This agent has no WebSearch or WebFetch access, so Firecrawl is the only path to the open web. Two interchangeable interfaces are available:

  • Firecrawl MCP tools (preferred for single, structured operations): mcp__firecrawl__firecrawl_search, firecrawl_scrape, firecrawl_map, firecrawl_crawl, firecrawl_extract.
  • Firecrawl CLI via the autoloaded firecrawl skill (preferred for multi-step workflows): search-to-scrape escalation, parallel scrapes, and file-based output for large pulls.

Follow the Firecrawl escalation ladder:

  1. Search (firecrawl_search) when you do not have a URL yet.
  2. Scrape (firecrawl_scrape) when you have a specific URL.
  3. Map + Scrape (firecrawl_map then firecrawl_scrape) to locate and pull a specific subpage on a large site.
  4. Crawl (firecrawl_crawl) for bulk content from a whole site section (for example, all of /docs/).
  5. Extract (firecrawl_extract) for structured data from complex pages.

Operating notes:

  • Return Firecrawl results in-context by default. Because this agent runs in plan mode, only write to .firecrawl/ (CLI -o) for large multi-page results, then Read/Grep those files instead of dumping them into context.
  • After a firecrawl_search, send firecrawl_search_feedback for the search id (refunds a credit and improves quality). Do not re-scrape URLs that a scraping search already fetched.
  • The one exception to "Firecrawl for everything online" is library and framework documentation. See the context7 note below.

Core Responsibilities:

  1. Online Research: Find documentation, APIs, best practices, and solutions from web sources via Firecrawl
  2. Codebase Investigation: Deep dive into local code to understand implementations and patterns
  3. Cross-Reference Analysis: Connect online knowledge with local implementations
  4. Documentation Synthesis: Combine findings from multiple sources into coherent insights
  5. Technology Research: Investigate libraries, frameworks, and tools both in use and potentially useful

Read the full file on GitHub · 105 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. yesterday Changed 2f9c44fb3e19
  2. 9d ago First seen · 105 lines · 58 tokens per session scan A 28e1609532b1

Subscribe to this mod's changes

researcher is an agent published in the GitHub repository wyattjoh/skills (2 stars, last pushed today), licensed MIT. It adds 58 tokens to every session and 1,392 once invoked, about $0.0003 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 2026-08-31.