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/roocodeinc/roo-code/evals-contextnpx skills add RooCodeInc/Roo-Code --skill evals-contextgit clone --depth 1 https://github.com/RooCodeInc/Roo-CodeWhat 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 | $0.00084 | $0.01856 |
| Opus 5 | $0.00042 | $0.00928 |
| Sonnet 5 | $0.00017 | $0.00371 |
| Haiku 4.5 | $0.00008 | $0.00186 |
Grade A, and why
evals-context 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- evals-context — 100% identical, 0 lines differ
- evals-context — 98% identical, 4 lines differ
How it starts
The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Evals Codebase Context
When to Use This Skill
Use this skill when the task involves:
- Modifying or debugging the evals execution infrastructure
- Adding new eval exercises or languages
- Working with the evals web interface (apps/web-evals)
- Modifying the public evals display page on roocode.com
- Understanding where evals code lives in this monorepo
When NOT to Use This Skill
Do NOT use this skill when:
- Working on unrelated parts of the codebase (extension, webview-ui, etc.)
- The task is purely about the VS Code extension's core functionality
- Working on the main website pages that don't involve evals
Key Disambiguation: Two "Evals" Locations
This monorepo has two distinct evals-related locations that can cause confusion:
| Component | Path | Purpose |
|---|---|---|
| Evals Execution System | packages/evals/ |
Core eval infrastructure: CLI, DB schema, Docker configs |
| Evals Management UI | apps/web-evals/ |
Next.js app for creating/monitoring eval runs (localhost:3446) |
| Website Evals Page | apps/web-roo-code/src/app/evals/ |
Public roocode.com page displaying eval results |
| External Exercises Repo | Roo-Code-Evals | Actual coding exercises (NOT in this monorepo) |
Directory Structure Reference
packages/evals/ - Core Evals Package
packages/evals/
├── ARCHITECTURE.md # Detailed architecture documentation
├── ADDING-EVALS.md # Guide for adding new exercises/languages
├── README.md # Setup and running instructions
├── docker-compose.yml # Container orchestration
├── Dockerfile.runner # Runner container definition
├── Dockerfile.web # Web app container
├── drizzle.config.ts # Database ORM config
├── src/
│ ├── index.ts # Package exports
│ ├── cli/ # CLI commands for running evals
│ │ ├── runEvals.ts # Orchestrates complete eval runs
│ │ ├── runTask.ts # Executes individual tasks in containers
│ │ ├── runUnitTest.ts # Validates task completion via tests
│ │ └── redis.ts # Redis pub/sub integration
│ ├── db/
│ │ ├── schema.ts # Database schema (runs, tasks)
│ │ ├── queries/ # Database query functions
│ │ └── migrations/ # SQL migrations
│ └── exercises/
│ └── index.ts # Exercise loading utilities
└── scripts/
└── setup.sh # Local macOS setup script
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 · 189 lines · 84 tokens per session scan A 7bdb85c7f7a7
evals-context is a skill published in the GitHub repository RooCodeInc/Roo-Code (24,320 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 84 tokens to every session and 1,856 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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