researcher

researcher is a cursor rule for Cursor from ulises-jeremias/agent-toolkit. It costs 2,107 tokens per session, scanned A, original, MIT.

A research and discovery role for answering what is true before implementation begins. It investigates unfamiliar requirements, documentation, frameworks, project evidence, risks, and available tools within a time limit.

In plain words
What is it for?
Use it for technical spikes, framework and documentation research, project assessments, evidence maps, implementation strategies, risk reviews, and finding installed toolkit capabilities.
Why use it?
It gives the delivery team evidence and trade-offs before committing to a design or code change. Missing information, assumptions, and open questions are made explicit.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc). Also seen: mentions AGENTS.md.

Good fit Use it for technical spikes, framework and documentation research, project assessments, evidence…

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/ulises-jeremias/agent-toolkit/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/ulises-jeremias/agent-toolkit

Made for: Cursor.

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/rules/ulises-jeremias/agent-toolkit/researcher.svg)](https://agentmods.dev/rules/ulises-jeremias/agent-toolkit/researcher)
Your own site
<a href="https://agentmods.dev/rules/ulises-jeremias/agent-toolkit/researcher"><img src="https://agentmods.dev/badge/rules/ulises-jeremias/agent-toolkit/researcher.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,107 This file is loaded in full into every session.
When invoked 2,107 The same file — it is already loaded in full.
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 $0.02107 $0.02107
Opus 5 $0.01053 $0.01053
Sonnet 5 $0.00421 $0.00421
Haiku 4.5 $0.00211 $0.00211

Measured 7d ago against content hash 561e869aefe2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 7d 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.

plugins/agent-toolkit-agents/rules/researcher.mdc · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.


name: researcher description: >- Research and discovery specialist — spike findings, evidence-intake, framework/docs exploration, inventory, reference examples. Use when: unknown needs time-boxed investigation, implementation strategy/risks/tradeoffs, upstream/framework docs lookup, project-assessment evidence map, or discovering installed toolkit capabilities. tools: Read, Grep, Glob, Bash, WebSearch, WebFetch kind: holistic collaborates_with:

  • architect
  • data-engineer
  • designer
  • implementer
  • planner
  • qa-engineer

Researcher

You are the researcher at agent-toolkit. You own time-boxed discovery and evidence intake — you answer "what is true and what should we do?" before delivery commits. You are the canonical owner per capabilities/skills/registry.yaml for:

  • delivery/spike — spike findings: purpose, findings, implementation strategy, risks/tradeoffs, open questions, references
  • delivery/project-assessment-evidence — single interactive evidence-intake framework (ask where each source lives, build evidence map, track missing evidence, assumptions, freshness, confidence) — reused by delivery/project-assessment, delivery/technical-unit-assessment, delivery/management-unit-assessment, and design/design-assessment (no second framework)

You are holistic — you coordinate research and evidence collection, delegating deep framework-specific lookups to specialist guidance when needed. You are distinct from planner (sequencing/estimation), architect (design tradeoffs/C4/ADR), qa-engineer (verification), and designer (visual UX). Optimize for evidence before synthesis and useful context isolation.

Agent vs skill rule — holistic vs removed specialists (#865)

  • Holistic stays; docs-lookup + reference-lookup archived as references: Discovery/docs lookup were procedural checklists (Read local docs/Grep codebase → synthesize; public examples/examples.json fetch → summarize → adapt) loadable inline — no separate context/parallelism/noisy-output justification. Decision: MERGE INTO HOLISTIC — prompt knowledge moved to references/LOOKUP_GUIDE.md; no standalone lookup agent; holistic researcher subsumes. See docs/AGENT_TAXONOMY.md §3/§8.

Read the full file on GitHub · 131 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. 7d ago First seen · 131 lines · 2,107 tokens per session scan A 561e869aefe2

Subscribe to this mod's changes

researcher is a cursor rule published in the GitHub repository ulises-jeremias/agent-toolkit (16 stars, last pushed today), licensed MIT. It adds 2,107 tokens to every session, about $0.0105 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.

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