Actix is a Rust workable choice for fintech. GreatCTO auto-detects both — adds the fintech archetype overlay, wires fintech-specific gates, and runs 34 specialist agents around your existing Actix workflow.
GreatCTO reads your Cargo.toml and detects actix + fintech archetype from signals: imports, file structure, env vars, README hints.
Attaches the fintech archetype overlay: PCI-DSS scope detection, SOX ITGC gates, KYC / AML hooks, idempotency review. Override if your specifics differ; the defaults are sensible for Actix-style projects.
qa-engineer runs cargo clippy / cargo test / cargo-tarpaulin; security-officer audits unsafe blocks + dependency tree; performance-engineer reviews allocator patterns.
Bugs you've hit before in other Actix projects (connection-pool exhaustion, ORM N+1 queries, retry storms) — the agent's Step 0 includes the prior detection order. MTTR drops 94 % on second occurrence (methodology).
$ cd my-actix-app && npx great-cto init ✓ scanning manifests… found manifest ✓ stack: actix (Rust) ✓ archetype: fintech ⚠ archetype + stack combo is unusual — review overlay manually ✓ 34 agents ready $ /start "add Stripe subscription endpoint" ▸ architect drafting ARCH-fintech.md… ▸ pm decomposing into beads tasks… ⚐ gate:plan — your approval needed
Approve → 3 senior-devs run in parallel worktrees → 5 reviewers fan out in parallel → gate:ship → deploy. One real run walked stage-by-stage: /proof.
Actix (Rust) is not a typical fit for fintech. The archetype overlay still attaches, but you may want to override defaults more aggressively. Check the fintech archetype page for the typical stack list and decide if your case is the right tool / right archetype.
No black-box "AI does it all" loop. GreatCTO is a deterministic state machine — 8 stages, 22 nodes, 2 human gates. Every node maps to a real agent on GitHub. Inspect the state machine →
$ npx great-cto init
Free, MIT, runs locally. Works in Claude Code, Cursor, OpenAI Codex CLI, Aider, and Continue.