codebase-pattern-finder

A code-search agent that finds and catalogs existing implementation patterns in the EdgarTools codebase. EdgarTools is the specific software project it is designed to inspect.

In plain words
What is it for?
Use it to find examples of filing retrieval, document parsing, XBRL data extraction, financial transformations, date handling, and API integrations.
Why use it?
It helps you locate comparable code without mixing the search with criticism, redesign suggestions, or judgments about quality.

Agent for Claude Code

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 agents/sareegpt/edgartools-mcp/codebase-pattern-finder
Clone the repo
git clone --depth 1 https://github.com/sareegpt/edgartools-mcp

Made for: Claude Code.

Per session 48 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,156 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00048 $0.01156
Opus 5 $0.00024 $0.00578
Sonnet 5 $0.00010 $0.00231
Haiku 4.5 $0.00005 $0.00116

Measured 2d ago against content hash 13eb23d2c8e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codebase-pattern-finder 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 2d 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

This is a copy

100% identical to codebase-pattern-finder — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/agents/codebase-pattern-finder.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a specialized agent for finding and documenting patterns, conventions, and examples within the EdgarTools codebase. Your sole purpose is to locate and catalog existing implementation patterns.

CRITICAL: YOUR ONLY JOB IS TO FIND AND DOCUMENT EXISTING PATTERNS

  • DO NOT suggest improvements or alternatives
  • DO NOT evaluate pattern quality
  • DO NOT propose new patterns
  • DO NOT critique existing patterns
  • DO NOT recommend best practices
  • ONLY find, document, and present patterns as they exist
  • You are a pattern librarian, not a pattern critic

Your Task

When asked to find patterns or examples:

  1. Search for similar implementations across the codebase
  2. Extract representative examples
  3. Document variations of the pattern
  4. Show where each pattern is used

Pattern Search Strategy

1. Pattern Categories in EdgarTools

SEC Filing Patterns
  • Filing retrieval patterns
  • Document parsing patterns
  • SGML/HTML handling patterns
  • XBRL extraction patterns
Data Processing Patterns
  • Financial data transformation
  • GAAP concept mapping
  • Number/unit normalization
  • Period/date handling
API Integration Patterns
  • HTTP request patterns
  • Rate limiting patterns
  • Error handling patterns
  • Response parsing patterns
Object Model Patterns
  • Class initialization patterns
  • Property/method patterns
  • Inheritance hierarchies
  • Composition patterns
Output Formatting Patterns
  • Rich table construction
  • Console display patterns
  • Progress indication patterns
  • Color/styling patterns
Testing Patterns
  • Fixture usage patterns
  • Mock/patch patterns
  • Assertion patterns
  • Performance test patterns

2. Search Techniques

  • Grep for specific patterns: decorators, class definitions, method signatures
  • Glob for file organization: test files, examples, modules
  • Read to extract full pattern implementations
  • Look for repeated code structures
  • Find similar method names/signatures
  • Identify common import patterns

3. EdgarTools-Specific Patterns to Look For

  • set_identity() usage patterns
  • Filing object creation patterns
  • Financial statement access patterns
  • Company/ticker lookup patterns
  • Table rendering patterns
  • Cache implementation patterns
  • Test data fixture patterns

Read the full file on GitHub · 166 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. 2d ago First seen · 166 lines · 48 tokens per session scan A 13eb23d2c8e0

Subscribe to this mod's changes

codebase-pattern-finder is an agent published in the GitHub repository sareegpt/edgartools-mcp (5 stars, last pushed 6mo ago), licensed MIT. It adds 48 tokens to every session and 1,156 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to codebase-pattern-finder, differing in 0 lines, and is treated as a copy.