researcher

researcher is a skill for Claude Code from svy04/ballast. It costs 57 tokens per session (911 once invoked), scanned A, original, MIT.

A research helper that can send fact-gathering questions to a separately configured command-line tool. It keeps collecting information separate from deciding which information is trustworthy.

In plain words
What is it for?
Use it for large information-gathering tasks, scans of existing methods, or collecting outside facts before building something.
Why use it?
It reduces the risk of accepting another model’s fluent summary as fact without checking it. If no usable researcher configuration exists, research stays in the current session.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the ballast plugin — 16 skills, 4 hooks shipped together

Good fit Use it for large information-gathering tasks, scans of existing methods, or collecting outside facts before building something.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/svy04/ballast/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.

Any agent
npx skills add svy04/ballast --skill researcher
Clone the repo
git clone --depth 1 https://github.com/svy04/ballast

Made for: Claude Code.

Or install ballast, the plugin that ships this one along with the rest of its 16 skills, 4 hooks.

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/skills/svy04/ballast/researcher/github.svg)](https://agentmods.dev/skills/svy04/ballast/researcher)
Your own site
<a href="https://agentmods.dev/skills/svy04/ballast/researcher"><img src="https://agentmods.dev/badge/skills/svy04/ballast/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/skills/svy04/ballast/researcher"><img src="https://agentmods.dev/badge/skills/svy04/ballast/researcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 911 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00057 $0.00911
Opus 5 $0.00028 $0.00456
Sonnet 5 $0.00011 $0.00182
Haiku 4.5 $0.00006 $0.00091

Measured 10d ago against content hash 7f6069cd62e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, 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 10d 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.

skills/researcher/SKILL.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Researcher — collection delegated, judgment kept

Two different jobs hide inside "research": going out to gather, and deciding what to believe. This skill delegates the first and forbids delegating the second. The failure mode this prevents: a second model's fluent summary walking straight into your files as fact.

Setup (optional, sibling of the verifier)

If the project has .claude/ballast.researcher.json (this skill reads it — the rules hook does not; a copy-ready example ships in the ballast repo at rules/ballast.researcher.example.json):

{ "command": "your-researcher-cli --search" }

run that command with the research question as its final argument. Any CLI that takes a question and returns findings works — a different vendor's model is fine here too.

The config is a bare object — no version/rules wrapper (that wrapper belongs to rule catalogs). A file that is missing, unreadable, or empty behaves the same way: you collect directly, as always. A file that parses but has no usable command (wrapped, wrong shape) gets the same fallback — plus one sentence telling the user their config isn't the expected shape. The user can also invoke this skill directly as /ballast:researcher.

Health check — once per session, out loud

Before the first delegation of a session, run the command once on a throwaway question (or --version if the CLI has one) — don't spend a real query to discover the tool is dead. If it fails or hangs, say so once — "researcher CLI isn't responding; collecting directly" — then proceed yourself.

A configured researcher that silently never ran is worse than none, and retrying a dead tool burns the session. One check, one sentence, move on.

Everything returned is hearsay

  • The researcher's output arrives as hearsay, with the researcher named as the source — never as fact, however fluent it reads.
  • Promotion to confirmed goes through the verify gate like any claim: refute first, primary sources you actually opened, sample, limits, date.
  • hearsay lives in working notes and session logs — memory/knowledge/ stays gate-passed only (the knowledge-base skill owns that door).
  • Delegation splits the work, not the responsibility. The collecting was outsourced; the believing was not.

Read the full file on GitHub · 51 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. 10d ago First seen · 51 lines · 57 tokens per session scan A 7f6069cd62e4

Subscribe to this mod's changes

researcher is a skill published in the GitHub repository svy04/ballast (71 stars, last pushed 16d ago), licensed MIT. It adds 57 tokens to every session and 911 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 2026-08-30.

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