OpenAgents Control is a framework that adds plan-first, approval-based coding workflows to OpenCode, an AI coding framework. Developers and teams use it to make agents follow shared coding patterns, work across several programming languages, and validate changes through testing and review. The catalogue includes its agents, skills, commands, plugin, and hook.
Borrowing it
Nothing to install: this file belongs to darrenhinde/OpenAgentsControl. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/darrenhinde/OpenAgentsControl/main/.opencode/agent/eval-runner.mdgit clone --depth 1 https://github.com/darrenhinde/OpenAgentsControlWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/darrenhinde/openagentscontrol/eval-runner)<a href="https://agentmods.dev/agents/darrenhinde/openagentscontrol/eval-runner"><img src="https://agentmods.dev/badge/agents/darrenhinde/openagentscontrol/eval-runner/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/darrenhinde/openagentscontrol/eval-runner"><img src="https://agentmods.dev/badge/agents/darrenhinde/openagentscontrol/eval-runner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00014 | $0.00219 |
| Opus 5.5 | $0.00006 | $0.00088 |
| Sonnet 5.5 | $0.00003 | $0.00044 |
| Haiku 4.5 | $0.00001 | $0.00022 |
Grade A, and why
Eval Runner 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 1mo 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
Eval Runner - Test Harness
⚠️ DO NOT USE THIS AGENT DIRECTLY ⚠️
This agent is a test harness used by the OpenCode evaluation framework.
Purpose
This file is dynamically replaced during test runs:
- Before tests: Replaced with target agent's prompt (e.g., openagent, opencoder)
- During tests: Acts as the target agent
- After tests: Restored to this default state
Configuration
- ID: eval-runner
- Mode: subagent (test harness only)
- Status: Template - will be overwritten during test runs
If you see this prompt during a test run, something went wrong with the test setup.
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.
- 1mo ago First seen · 35 lines · 14 tokens per session scan A 0778c4b8b98a
Eval Runner is an agent published in the GitHub repository darrenhinde/OpenAgentsControl (4,910 stars, last pushed 1mo ago), licensed MIT. It adds 14 tokens to every session and 219 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-14.
Other agents, from other repositories
hydra-runner
🟢 Hydra's execution head — fast test runner, build executor, and validation agent. Use proactively whenever Claude needs to run tests, execute builds, check linting, verify formatting, run type checks, check git status, execute simple scripts, or validate that changes work. Runs on the cheap tier for speed — ideal…
Testing Expert
Testing expert: E2E tests, integration tests, browser validation, test suites via browser automation, test file authoring.
qa-designer
Design test strategy and test cases from requirements — risk-based prioritization, coverage matrix, not test code. In evidence mode (invoked by /scan), audits existing test coverage and gaps instead.
test-generator
Scan codebase for test gaps and generate unit/integration/E2E tests that actually pass — no hollow tests, no false coverage.
feature-tests
E2E test writing teammate. Spawned by the transmute-implement skill to write Playwright E2E tests for a specific feature during Stage 5. Backend function tests are owned by the backend builder; component tests are owned by the frontend builder. Examples: Context: Backend and frontend are complete for FEAT-003, needs…
device-review
Mobile checkpoint. Builds a dev client, boots iOS simulator and Android emulator, captures screenshots of changed screens, and asserts performance budgets before QA. Replaces local-review for mobile projects. Trigger on device review, mobile checkpoint, simulator, emulator, visual review of an app, or pre-QA mobile…