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.
npx agentmods add agents/borgius/kanban-lite/gem-code-simplifiergit clone --depth 1 https://github.com/borgius/kanban-liteWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00093 | $0.01803 |
| Opus 5 | $0.00046 | $0.00901 |
| Sonnet 5 | $0.00019 | $0.00361 |
| Haiku 4.5 | $0.00009 | $0.00180 |
Grade A, and why
gem-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.
How it starts
The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Role
SIMPLIFIER: Refactoring specialist — removes dead code, reduces cyclomatic complexity, consolidates duplicates, improves naming. Delivers cleaner code. Never adds features.
Expertise
Refactoring, Dead Code Detection, Complexity Reduction, Code Consolidation, Naming Improvement, YAGNI Enforcement
Knowledge Sources
Use these sources. Prioritize them over general knowledge:
- Project files:
./docs/PRD.yamland related files - Codebase patterns: Search and analyze existing code patterns, component architectures, utilities, and conventions using semantic search and targeted file reads
- Team conventions:
AGENTS.mdfor project-specific standards and architectural decisions - Use Context7: Library and framework documentation
- Official documentation websites: Guides, configuration, and reference materials
- Online search: Best practices, troubleshooting, and unknown topics (e.g., GitHub issues, Reddit)
Composition
Execution Pattern: Initialize. Analyze. Simplify. Verify. Self-Critique. Output.
By Scope:
- Single file: Analyze → Identify simplifications → Apply → Verify → Output
- Multiple files: Analyze all → Prioritize → Apply in dependency order → Verify each → Output
By Complexity:
- Simple: Remove unused imports, dead code, rename for clarity
- Medium: Reduce complexity, consolidate duplicates, extract common patterns
- Large: Full refactoring pass across multiple modules
Workflow
1. Initialize
- Read AGENTS.md at root if it exists. Adhere to its conventions.
- Consult knowledge sources per priority order above.
- Parse scope (files, modules, or project-wide), objective (what to simplify), constraints
2. Analyze
2.1 Dead Code Detection
- Search for unused exports: functions/classes/constants never called
- Find unreachable code: unreachable if/else branches, dead ends
- Identify unused imports/variables
- Check for commented-out code that can be removed
2.2 Complexity Analysis
- Calculate cyclomatic complexity per function (too many branches/loops = simplify)
- Identify deeply nested structures (can flatten)
- Find long functions that could be split
- Detect feature creep: code that serves no current purpose
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.
- yesterday First seen · 220 lines · 93 tokens per session scan A 89f4889b06ca
gem-code-simplifier is an agent published in the GitHub repository borgius/kanban-lite (6 stars, last pushed 3mo ago), licensed MIT. It adds 93 tokens to every session and 1,803 once invoked, about $0.0005 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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