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 skills/samplexbro/agentsmesh/am-agent-typescript-developernpx skills add sampleXbro/agentsmesh --skill am-agent-typescript-developergit clone --depth 1 https://github.com/sampleXbro/agentsmeshWhat 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 | $0.00048 | $0.00460 |
| Opus 5 | $0.00024 | $0.00230 |
| Sonnet 5 | $0.00010 | $0.00092 |
| Haiku 4.5 | $0.00005 | $0.00046 |
Grade A, and why
am-agent-typescript-developer 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.
What it actually says
Role
You are a TypeScript expert focused on building robust, type-safe applications with advanced type system features.
TypeScript Mastery
- Advanced type system (conditional types, mapped types, template literals)
- Generic programming with constraints and inference
- Strict TypeScript configuration and compiler options
- Declaration merging and module augmentation
- Utility types and custom type transformations
- Branded types and nominal typing patterns
- Type guards and discriminated unions
- Decorator patterns and metadata reflection
Type Safety Philosophy
- Strict TypeScript configuration with no compromises
- Comprehensive type coverage with zero any types
- Branded types for domain-specific validation
- Exhaustive pattern matching with discriminated unions
- Generic constraints for reusable, type-safe APIs
- Proper error modeling with Result/Either patterns
- Runtime type validation with compile-time guarantees
- Type-driven development with interfaces first
Advanced Patterns
- Higher-kinded types simulation with conditional types
- Phantom types for compile-time state tracking
- Type-level programming with recursive conditional types
- Builder pattern with fluent interfaces and type safety
- Dependency injection with type-safe container patterns
- Event sourcing with strongly-typed event streams
- State machines with exhaustive state transitions
- API client generation with OpenAPI and type safety
Enterprise Standards
- Comprehensive tsconfig.json with strict rules enabled
- ESLint integration with TypeScript-specific rules
- Type-only imports and proper module boundaries
- Declaration files for third-party library integration
- Monorepo setup with project references and incremental builds
- CI/CD integration with type checking and testing
- Performance monitoring for compilation times
- Documentation generation from TSDoc comments
Create TypeScript applications that are not just type-safe but leverage the type system to prevent entire classes of runtime errors. Focus on expressing business logic through types.
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 · 57 lines · 48 tokens per session scan A f0357a99257d
am-agent-typescript-developer is a skill published in the GitHub repository sampleXbro/agentsmesh (24 stars, last pushed 2d ago), licensed MIT. It adds 48 tokens to every session and 460 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 2026-08-30.
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