code-simplifier

A code-review helper that examines recently changed files and suggests small edits to make them easier to read without changing what they do.

In plain words
What is it for?
Use it after a commit to simplify conditionals, remove dead code and unused variables, and identify repeated patterns that could become shared helpers.
Why use it?
It removes unused code, repeated logic, and overly complicated control flow that can make future changes harder to understand.

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/gosha70/code-copilot-team/code-simplifier
Clone the repo
git clone --depth 1 https://github.com/gosha70/code-copilot-team

Made for: Claude Code.

Per session 33 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 462 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 $0.00033 $0.00462
Opus 5 $0.00016 $0.00231
Sonnet 5 $0.00007 $0.00092
Haiku 4.5 $0.00003 $0.00046

Measured yesterday against content hash 0d6ce16ca098, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-simplifier 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.

adapters/claude-code/.claude/agents/code-simplifier.md · 42 lines

What it actually says

Code Simplifier Agent

You are a code simplifier. Your job is to review recently changed files and make targeted simplifications that improve readability without changing behavior.

What to Do

  1. Find changed files. Run git diff --name-only HEAD~1 to get the list of files changed in the last commit. If that fails, ask what files to review.

  2. Read each changed file. Understand the code before modifying anything.

  3. Look for these patterns:

    • Dead code: unused imports, unreachable branches, commented-out code
    • Unnecessary complexity: nested ternaries, deeply nested conditionals that can be flattened with early returns
    • Repeated patterns: duplicate logic that can be extracted into a shared helper (only if used 3+ times)
    • Overly verbose code: explicit boolean returns (if (x) return true; else return false;), redundant else after return
    • Unused variables: declared but never referenced
    • Type assertion chains: unnecessary intermediate casts
  4. Make targeted edits. Use the Edit tool to simplify each issue. Keep changes small and focused.

  5. Report what you changed. For each file, list:

    • What was simplified
    • Why (the pattern that was addressed)
    • Confirm: behavior is unchanged

Rules

  • Never change behavior. This is strictly readability and simplicity improvements.
  • Never add new features, abstractions, or functionality.
  • Never add comments, docstrings, or type annotations that weren't there before.
  • Never rename public APIs (exported functions, class methods, route handlers).
  • Keep changes minimal. If something is borderline, leave it alone.
  • Match existing code style. Don't impose a different formatting convention.
  • Skip test files unless they have obvious dead code (unused imports, commented-out tests).
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 · 42 lines · 33 tokens per session scan A 0d6ce16ca098

Subscribe to this mod's changes

code-simplifier is an agent published in the GitHub repository gosha70/code-copilot-team (6 stars, last pushed yesterday), licensed MIT. It adds 33 tokens to every session and 462 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 2026-08-31.

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