Use case
Evaluate coding agents on real repositories
Coding agents fail on messy repos, flaky tests, and tool limits — not on polished benchmark prompts. AgentClash evaluates patches, test runs, artifacts, and cost on workloads your team actually ships.
Candidate
Baseline
Control
replay timeline
ci verdict
Correctness improved, latency within budget, and required artifacts were preserved for review.
agentclash run create --follow
What coding agent eval should check
Built for reviewable agent decisions
Look for correct fixes, sane tool usage, reproducible artifacts, and stable cost/latency — not just a plausible diff in a demo.
Sandboxed real-tool execution
Head-to-head runs with fair constraints
Scorecards for correctness, cost, latency, and tool strategy
Replay trails for every important action
Challenge packs that turn failures into reusable tests
CI gates for baseline versus candidate decisions
Workflow
Coding eval workflow
Package the task
Describe the workload as a challenge pack with inputs, tools, scoring rules, and artifacts.
Race the agents
Run every candidate against the same task with the same constraints.
Replay the evidence
Inspect tool calls, outputs, artifacts, latency, cost, and judge evidence after the run.
Gate the release
Compare candidate and baseline runs, then fail CI before a regression reaches users.
Start with a real bug
Bring your first workload into the loop
Promote a failed coding-agent run into a challenge pack, then race model and harness changes before they reach users.
FAQ
Coding agent evaluation FAQ
Can AgentClash evaluate agents that edit code?
Yes. Challenge packs can run agents in sandboxes with repository fixtures, test commands, and artifact checks for patches and logs.
How do teams compare coding agents fairly?
Run every candidate on the same repo state, tool policy, and time budget, then compare scorecards and replay evidence.
Can coding agent evals run in CI?
Yes. Wire challenge packs into pull request gates so model, prompt, or tool changes cannot merge when correctness regresses.