Stop your coding agents from
repeating the same mistakes
agent-tuner logs your AI agent's failed code generations, distills them into project-specific rules and regression evals, and auto-updates your agent config — a self-improving loop tied to your codebase, not a static prompt library.
The feedback loop
Four commands. The rules your team learns the hard way become permanent.
Capture a failed generation in one line — manually, from a shell hook, or in CI.
Your LLM turns failures into a small set of sharp, durable rules + an eval each.
Rules written into a managed block in your agent config. Idempotent; never clobbers your prose.
Re-runs the failing prompt with the new rules. Exits non-zero on regression — gate your pipeline.
Why agent-tuner
Built for the way real teams use coding agents.
Tied to your codebase
Rules come from real failures in your repo — not a generic best-practices list that ignores your conventions.
Regression evals
Every rule ships with a test that proves the mistake is fixed and stays fixed. CI-gating, so quality can't silently rot.
Works with every agent
CLAUDE.md, AGENTS.md, .cursorrules, copilot-instructions, Windsurf. Any LLM via your own gateway — models stay swappable.
Zero dependencies
One `npx` command, no node_modules, tiny supply-chain surface. Installs in seconds into any repo.
Git-native
Rules and evals are readable JSON you commit. Your team's hard-won knowledge becomes a versioned asset.
Share across the org
Sync rules between repos and roll up an org-wide ruleset so every team's agents get smarter together.
Pricing
Free forever for a single repo. Pay when you want your rules to travel.
- 1 repo
- Unlimited local rules & evals
- All CLI features
- CI eval-gating
- Every agent + every LLM gateway
- Everything in Free
- Sync rules across repos
- Shared eval history
- Team rule review
- Priority support
- Everything in Team
- Org-wide shared ruleset
- Cross-team rollups
- Approval workflow
- GST invoice (India)
Pricing shown in USD and INR. Checkout via Stripe (global) and Razorpay/UPI (India) — launching shortly. Until then, the Free tier is fully usable today: npx agent-tuner init.