research:prior-art

research:prior-art is a skill for Claude Code from bendrucker/claude. It costs 43 tokens per session (556 once invoked), scanned A, original, MIT.

A workflow for researching existing tools and libraries before building something new. It examines projects, package registries, and broader web sources to understand available approaches.

In plain words
What is it for?
Use it to investigate prior art for a technical problem, read promising project documentation, compare approaches, and form a recommendation.
Why use it?
It reduces duplicated effort and reveals common patterns and trade-offs before implementation begins.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the research plugin — 1 skill shipped together

Good fit Use it to investigate prior art for a technical problem, read promising project documentation, compare approaches, and form a recommendation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bendrucker/claude/prior-art
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 bendrucker/claude --skill prior-art
Clone the repo
git clone --depth 1 https://github.com/bendrucker/claude

Made for: Claude Code.

Or install research, the plugin that ships this one along with the rest of its 1 skill.

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 research:prior-art

README.md
[![agentmods](https://agentmods.dev/badge/skills/bendrucker/claude/prior-art/github.svg)](https://agentmods.dev/skills/bendrucker/claude/prior-art)
Your own site
<a href="https://agentmods.dev/skills/bendrucker/claude/prior-art"><img src="https://agentmods.dev/badge/skills/bendrucker/claude/prior-art/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 research:prior-art

Your own site · 80×15
<a href="https://agentmods.dev/skills/bendrucker/claude/prior-art"><img src="https://agentmods.dev/badge/skills/bendrucker/claude/prior-art.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 556 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 $0.00043 $0.00556
Opus 5.5 $0.00017 $0.00222
Sonnet 5.5 $0.00009 $0.00111
Haiku 4.5 $0.00004 $0.00056

Measured 2mo ago against content hash a38dcd139b6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

research:prior-art 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.

plugins/research/skills/prior-art/SKILL.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Research prior art for: $ARGUMENTS

Process

Search

Identify relevant sources based on context:

  • GitHub: Search for repositories matching the problem space
  • Package registries: npm, PyPI, crates.io, pkg.go.dev—infer from current project or query
  • Web search: For broader landscape understanding

Run searches in parallel. Infer the ecosystem from:

  1. Current project's language/framework (if present)
  2. Query terms (e.g., "React hook for X" implies npm)
  3. Ask only if genuinely ambiguous

Investigation

Start with 2-3 most promising projects:

  1. Read README and high-level docs to assess relevance
  2. Examine code only when relevance is confirmed AND implementation details matter
  3. Dispatch parallel Agent calls per project, with explicit focus areas

If results don't satisfy the query, expand to more projects.

Agent dispatch example:

Investigate [project] for prior art on [topic]:
- How does it approach [specific aspect]?
- What tradeoffs does it make?
- What can we learn for our use case?

Synthesis

Gather findings and produce a recommendation:

  • Identify common patterns across solutions
  • Note meaningful variations in approach
  • Infer intent:
    • "build X" → learn patterns, inform implementation
    • "library for X" → find dependencies to use directly

Output Format

Respond in the conversation with structured markdown, not files:

## Prior Art: [Topic]

### Summary
[Common patterns, key variations, recommendation based on query intent]

### Projects

#### [Project Name]
- **Repository**: [link]
- **Relevance**: [why this matters to the query]
- **Approach**: [how it solves the problem]
- **Lessons**: [what to learn from it]

#### [Next Project]
...

### Additional Projects (not deeply investigated)
- [Project]: [one-line description]
- ...

Behavior Guidelines

  • Honest reporting: Acknowledge when prior art is sparse—don't force results
  • Research only: Don't offer to integrate dependencies or modify the project
  • Ecosystem inference: Derive from context, don't require explicit specification
  • Adaptive depth: Investigate more projects if the initial batch is insufficient

Read the full file on GitHub · 83 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. 2mo ago First seen · 83 lines · 43 tokens per session scan A a38dcd139b6c

Subscribe to this mod's changes

research:prior-art is a skill published in the GitHub repository bendrucker/claude (18 stars, last pushed today), licensed MIT. It adds 43 tokens to every session and 556 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 2026-09-03.

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