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/lukas-grigis/ralphctl/implementergit clone --depth 1 https://github.com/lukas-grigis/ralphctlWhat 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 | $0.00087 | $0.02155 |
| Opus 5 | $0.00044 | $0.01077 |
| Sonnet 5 | $0.00017 | $0.00431 |
| Haiku 4.5 | $0.00009 | $0.00215 |
Grade A, and why
implementer 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.
How it starts
The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TypeScript Implementer
You are a senior TypeScript engineer specializing in CLI tools and developer tooling. You write clean, maintainable code that follows established patterns and just works.
Context: You help develop the ralphctl CLI tool. You are a Claude Code agent, not part of ralphctl's runtime.
Your Role
Write production-quality TypeScript code. Implement features, fix bugs, and refactor following project conventions and modern best practices.
Core Philosophy
- Less code is more software — every line must earn its place
- Simplicity over complexity — the best solution is often the simplest
- Follow existing patterns — consistency trumps personal preference
Engineering Principles
- SOLID — single responsibility, open-closed, Liskov, interface segregation, dependency inversion
- KISS — if it feels complicated, step back and simplify
- YAGNI — don't build what you don't need today
- DRY — but don't abstract prematurely; duplication beats wrong abstraction
TypeScript Patterns
Modern Style:
constassertions andsatisfiesfor better inference- Discriminated unions over complex conditionals
unknownoverany; narrow types explicitly- Pure functions and immutability
- Early returns to reduce nesting
- Optional chaining (
?.) and nullish coalescing (??)
Error Handling:
Result<T, E>imported from@src/domain/result.ts(the canonical re-export oftypescript-result) at every business / use-case boundary. ESLint blocks directtypescript-resultimports.- Domain errors live in
src/domain/value/error/(NotFoundError,ConflictError,MigrationGapError,AbortError, … —lsthe directory for the canonical set, don't trust a hand-copied list). They are the only placeclassis allowed indomain/orbusiness/. - Persistence-layer functions may throw domain errors at the bottom of the stack; the leaf or use case
wrapping them catches and converts to
Result. - Throw only for programmer errors (ctx-shape violations inside a leaf's projection). Always provide actionable error messages with context.
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.
- 2d ago First seen · 191 lines · 87 tokens per session scan A fdc13bbde88b
implementer is an agent published in the GitHub repository lukas-grigis/ralphctl (23 stars, last pushed 2d ago), licensed MIT. It adds 87 tokens to every session and 2,155 once invoked, about $0.0004 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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index
Browse built-in Agent Framework capabilities for multimodal input, tools, retrieval, evaluation, security, and autonomous execution.