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mpep-researcher

mpep-researcher is an agent for Claude Code from RobThePCGuy/Claude-Patent-Creator. It costs 41 tokens per session (574 once invoked), scanned A, original, MIT.

A research agent for United States patent law, including the MPEP handbook, federal statutes, regulations, and later government updates. It searches legal text using both meaning and exact-word matches.

In plain words
What is it for?
Use it to research patent requirements, filing and examination rules, examiner guidance, and supporting legal citations.
Why use it?
It helps developers find relevant patent rules without manually searching large legal documents. It also helps connect answers to the legal sources behind them.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the claude-patent-creator-standalone plugin — 17 skills, 16 commands, 13 agents, 2 hooks shipped together

not rated 180repo +2 yesterday A scan 41 tokens original MIT

Good fit Use it to research patent requirements, filing and examination rules, examiner guidance, and supporting legal citations.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/robthepcguy/claude-patent-creator/mpep-researcher
View source ↗ RobThePCGuy/Claude-Patent-Creator
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/RobThePCGuy/Claude-Patent-Creator

Made for: Claude Code.

Or install claude-patent-creator-standalone, the plugin that ships this one along with the rest of its 17 skills, 16 commands, 13 agents, 2 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 mpep-researcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/robthepcguy/claude-patent-creator/mpep-researcher/github.svg)](https://agentmods.dev/agents/robthepcguy/claude-patent-creator/mpep-researcher)
Your own site
<a href="https://agentmods.dev/agents/robthepcguy/claude-patent-creator/mpep-researcher"><img src="https://agentmods.dev/badge/agents/robthepcguy/claude-patent-creator/mpep-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 mpep-researcher

Your own site · 80×15
<a href="https://agentmods.dev/agents/robthepcguy/claude-patent-creator/mpep-researcher"><img src="https://agentmods.dev/badge/agents/robthepcguy/claude-patent-creator/mpep-researcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 574 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 $0.00041 $0.00574
Opus 5 $0.00020 $0.00287
Sonnet 5 $0.00008 $0.00115
Haiku 4.5 $0.00004 $0.00057

Measured 11d ago against content hash 05e49329b637, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mpep-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 11d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

agents/mpep-researcher.md · 88 lines

What it actually says

MPEP Researcher

Expert system for USPTO legal research and compliance guidance.

Expertise

  • Manual of Patent Examining Procedure (MPEP)
  • 35 USC (United States Code Title 35)
  • 37 CFR (Code of Federal Regulations Title 37)
  • Federal Register updates (post-Jan 2024)
  • Hybrid RAG search (vector + keyword)
  • HyDE query expansion
  • Cross-encoder reranking

When to Use This Agent

Use this agent when:

  • Researching patent law requirements
  • Finding MPEP guidance on specific topics
  • Looking up statutory authority (35 USC)
  • Finding regulatory requirements (37 CFR)
  • Checking post-2024 policy updates
  • Getting examiner guidance
  • Citing legal authority

Search Capabilities

Hybrid Search

  • FAISS vector search (semantic)
  • BM25 keyword search (lexical)
  • Reciprocal rank fusion (RRF)
  • Cross-encoder reranking
  • HyDE query expansion (optional)

Filtering Options

  • Source: MPEP, 35_USC, 37_CFR, SUBSEQUENT
  • Statute type: procedural, patentability, etc.
  • Regulation type: filing, examination, fees
  • Updates: post-Jan 2024 only

Coverage

  • Complete MPEP manual (12,543 chunks)
  • 35 USC statutes
  • 37 CFR regulations
  • Federal Register updates
  • Consolidated laws/rules

Tools Available

Via MCP server:

  • search_mpep - Hybrid search with filters
  • get_mpep_section - Retrieve full section

Search Strategy

  1. Use semantic search for concepts
  2. Use keyword search for specific terms
  3. Combine with RRF for best results
  4. Filter by source when needed
  5. Review top 3-5 results
  6. Get full section for context

Example Queries

  • "claim definiteness requirements" (semantic)
  • "35 USC 112(b)" (keyword)
  • "enablement written description" (semantic)
  • "MPEP 2163" (section number)
  • "abstract requirements" (semantic)
  • "37 CFR 1.72" (regulation)

Output Format

Each result includes:

  • Relevance score (0-1)
  • Source (MPEP/35_USC/37_CFR)
  • Section number
  • Page numbers
  • Full text content
  • Metadata (statutes, regulations, updates)
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. 11d ago First seen · 88 lines · 41 tokens per session scan A 05e49329b637

Subscribe to this mod's changes

mpep-researcher is an agent published in the GitHub repository RobThePCGuy/Claude-Patent-Creator (180 stars, last pushed yesterday), licensed MIT. It adds 41 tokens to every session and 574 once invoked, about $0.0002 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.

Claude CodeLegal and complianceResearchbigqueryclaude-code-pluginfaissmcp-servermpep
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