Fletch runs your coding agents in parallel and in real isolation — then chains them into deterministic workflows that plan, build, review and test. You ship AI-written code you can actually trust, not just more of it.
Chain specialist agents — architect, coder, reviewer, tester — into a repeatable pipeline with a gate at every step. The same disciplined process on every feature.
Every agent works in its own full clone under a hard sandbox — not a shared worktree. It can't touch your repo, your machine, or another agent's work.
Live diffs, real review, and one button from change to merged PR. Nothing lands until it clears your checks. Control, not autopilot.
You've been waving through diffs you never read, one agent at a time. Fletch brings the discipline. Every task runs a specialist pipeline in real isolation – planned, built, reviewed, tested – so what ships is engineered, not just generated.
Chain specialist agents into a workflow. Each step hands the next full context, every step has a gate, and it runs the same way every time. Loop until it's right.
Plans against your real codebase — existing structure, conventions, roadmap.
Builds the change in its own isolated clone.
Greptile, your own reviewer agent, or your CI — checks the work.
Runs your test command. Loops back if it isn't green.
Bring your own specialists. Fletch orchestrates Greptile, your CI and your test suite — it conducts the tools you already trust, it doesn't replace them.
Most tools drop agents into git worktrees that share one repo. Fletch forks a full clone for each agent and seals it in a hard sandbox.
One repo, forked into a full clone per agent — each sealed in its own write-sandbox, or a Docker container. An agent can't touch your repo, your machine, or another agent's work, so it's safe to let them run.
Claude, Codex, Cursor to build. Greptile and your CI to review. Your tests to gate. Fletch drives the official CLIs and tools you already pay for – no middleman keys, no markup – and makes them run as one pipeline.
Read the diff. See the review. Watch the tests go green. Then – and only then – commit, PR and merge in one move. Speed, without giving up the wheel.
Deterministic, not vibes. Repeatable specialist workflows – plan, build, review, test. The same process on every feature.
Real isolation. Every agent in its own clone under a hard sandbox. It can't touch your repo, your machine, or another agent.
You hold the gate. Live diffs, real review, one button from change to merged PR – and nothing lands until your checks pass.
Orchestrates your specialists. Greptile, your CI, your tests – Fletch conducts the tools you already trust, it doesn't replace them.
Local-first, your subscriptions. Your code stays in your git; agents use the plans you already pay for. Fletch's servers never see your source.
Download Fletch, point it at a repo, and run your first disciplined workflow in under a minute.