development-assistant

development-assistant is a skill for Claude Code from RobThePCGuy/Claude-Patent-Creator. It costs 24 tokens per session (1,229 once invoked), scanned A, original, MIT.

A development guide for extending the Claude Patent Creator system with new tools, analyzers, settings, database queries, or slash commands.

In plain words
What is it for?
Use it when adding MCP tools, input validation, performance tracking, BigQuery queries, configuration options, or other features to the patent system.
Why use it?
It gives developers a defined workflow for planning, implementing, testing, documenting, and integrating changes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

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

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.

agentmods
npx agentmods add skills/robthepcguy/claude-patent-creator/development-assistant
Any agent
npx skills add RobThePCGuy/Claude-Patent-Creator --skill development-assistant
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 development-assistant

README.md
[![agentmods](https://agentmods.dev/badge/skills/robthepcguy/claude-patent-creator/development-assistant.svg)](https://agentmods.dev/skills/robthepcguy/claude-patent-creator/development-assistant)
Your own site
<a href="https://agentmods.dev/skills/robthepcguy/claude-patent-creator/development-assistant"><img src="https://agentmods.dev/badge/skills/robthepcguy/claude-patent-creator/development-assistant.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,229 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00024 $0.01229
Opus 5 $0.00012 $0.00615
Sonnet 5 $0.00005 $0.00246
Haiku 4.5 $0.00002 $0.00123

Measured 6d ago against content hash d315545380d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

development-assistant 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 6d 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:

skills/development-assistant/SKILL.md · 205 lines

How it starts

The opening of the file, as written. The whole thing — 205 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Development Assistant Skill

Expert system for developing and extending the Claude Patent Creator. Guides through adding new MCP tools, analyzers, configuration options, and features while following best practices and existing patterns.

When to Use This Skill

Activate when adding MCP tools, analyzers, configuration options, BigQuery queries, slash commands, or implementing performance optimizations.

Development Workflow

Feature Request -> Planning -> Implementation (Code + Validation + Monitoring + Tests) -> Testing -> Documentation -> Integration

Adding New MCP Tools

Quick Start:

  1. Define inputs, outputs, dependencies
  2. Create Pydantic model in mcp_server/validation.py
  3. Add tool function in mcp_server/server.py with decorators
  4. Create test script in scripts/
  5. Update CLAUDE.md

Key Decorators:

@mcp.tool()                    # Register as MCP tool
@validate_input(YourInput)     # Pydantic validation
@track_performance             # Performance monitoring

Template:

def your_tool(param: str, optional: int = 10) -> dict:
    """Comprehensive docstring (Claude sees this).

    Args:
        param: Description
        optional: Description with default

    Returns:
        Dictionary containing: key1, key2, key3
    """
    # Implementation
    return {"result": "data"}

Adding New Analyzers

Overview: Analyzers inherit from BaseAnalyzer and check USPTO compliance.

Minimal Example:

from mcp_server.analyzer_base import BaseAnalyzer

class YourAnalyzer(BaseAnalyzer):
    def __init__(self):
        super().__init__()
        self.mpep_sections = ["608", "2173"]

    def analyze(self, content: str) -> dict:
        issues = []
        if violation:
            issues.append({
                "type": "violation_name",
                "severity": "critical",
                "mpep_citation": "MPEP 608",
                "recommendation": "Fix description"
            })
        return {"compliant": len(issues) == 0, "issues": issues}

Read the full file on GitHub · 205 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. 6d ago First seen · 205 lines · 24 tokens per session scan A d315545380d8

Subscribe to this mod's changes

development-assistant is a skill published in the GitHub repository RobThePCGuy/Claude-Patent-Creator (178 stars, last pushed 12d ago), licensed MIT. It adds 24 tokens to every session and 1,229 once invoked, about $0.0001 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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