similar-code

A guide for finding existing implementations of a coding pattern across an organization's repositories. It looks for prior art, shared libraries, official solutions, and meaningful alternatives.

In plain words
What is it for?
Use it to search for similar features, compare internal implementations, find shared solutions, and check established patterns before writing new code.
Why use it?
It helps avoid rebuilding something that already exists and gives you reference code before choosing an approach.

Skill for Claude CodeCodex

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/gleanwork/cursor-plugins/similar-code
Any agent
npx skills add gleanwork/cursor-plugins --skill similar-code
Clone the repo
git clone --depth 1 https://github.com/gleanwork/cursor-plugins

Made for: Claude Code, Codex.

Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,046 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 $0.00037 $0.01046
Opus 5 $0.00018 $0.00523
Sonnet 5 $0.00007 $0.00209
Haiku 4.5 $0.00004 $0.00105

Measured yesterday against content hash 6aa7f8ab2ce7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

similar-code 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 yesterday.

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 similar-code — 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.

glean/skills/similar-code/SKILL.md · 150 lines

How it starts

The opening of the file, as written. The whole thing — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Similar Code

Search for similar implementations across the organization to find prior art, alternative approaches, or shared solutions.

Determine the pattern or feature from the user's request. If not specified, ask before proceeding.

Core Principles

  • Find the blessed path: Look for official/platform solutions first
  • Compare approaches: Different solutions have different tradeoffs
  • Be skeptical: Not every implementation is worth following
  • Quality over quantity: 3 vetted implementations beats 10 random matches

Process

Phase 1: Search for Direct Implementations

Look for the pattern/feature across all repos:

code_search "[topic] implementation"
code_search "[topic] handler OR service"
code_search "[topic] util OR helper"

Phase 2: Search for Alternative Terms

The same concept might be named differently:

code_search "[synonym] implementation"
code_search "[synonym] service"

For example, "rate limiting" might also be called "throttling", "quota", "backpressure".

Phase 3: Find Shared Libraries

Look for centralized implementations:

code_search "[topic] package OR library"
search "[topic] shared library OR common"

Phase 4: Find Related Discussions

Search for design discussions about this pattern:

search "[topic] design doc OR RFC"
search "[topic] best practices OR guidelines"

Phase 5: Vet Each Implementation

For each implementation found, evaluate:

Test ✅ Recommended ⚠️ Acceptable ❌ Reject
Quality Clean, tested, well-maintained, follows best practices Works but has caveats Hacky, untested, deprecated
Maintenance Commits in past 3 months Last commit 3-12 months ago No activity in 12+ months
Adoption Deployed, actively used Small usage, may have issues Experiments, abandoned PRs
Ownership Clear maintainer, responds to issues Works but no clear owner Orphaned, no maintenance

Read the full file on GitHub · 150 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. yesterday First seen · 150 lines · 37 tokens per session scan A 6aa7f8ab2ce7

Subscribe to this mod's changes

similar-code is a skill published in the GitHub repository gleanwork/cursor-plugins (3 stars, last pushed 12d ago), licensed MIT. It adds 37 tokens to every session and 1,046 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 similar-code, differing in 0 lines, and is treated as a copy.

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