10 years owning lead-to-cash systems; billing automation in production ~19 months; now shipping evaluated agent systems with human gates. Senior applied-AI and business-systems engineer in Python and TypeScript — evals, tests, and CI, not demos.
Site: dallascrilley.com · Hiring? dallascrilley.com/hire · Proof ledger: dallascrilley.com/proof
- Shipwright: an agent that takes an approved GitHub issue and returns a tested, reviewable pull request — it opens the PR only after the target repository's own test command exits zero in a disposable sandbox
- Vouch: human review as an API — agents submit work, real reviewers return a consensus verdict; 173 tests plus offline e2e harnesses
- Holdfast: append-only decision ledger with a human publish gate, enforced inside Postgres by triggers, a hash chain, and unique indexes; ships adversarial attack tests against its own gate
The full catalog — with sources and caveats for every headline metric — lives on the proof ledger.
Catalog provenance: much of this catalog was published to public GitHub in one recent pass while assembling the proof ledger — a repo's publication date is not its development timeline. Where the scaffold-vs-hand-written split matters, the repo carries receipts (e.g. Winnow's docs/receipts.md).
Agents commit under this login; I own the merge gate. The repository's own verification command runs against every change, CI blocks the merge until it passes, and a human makes each irreversible call. The three repos above are that gate as working code: Shipwright won't open a PR until the tests pass, Vouch routes agent output to human reviewers for a consensus verdict, and Holdfast enforces the publish gate inside Postgres. Open any repo's history and you can see the split: agent commits carry the implementation; my commits set direction, resolve review findings, and cut releases.
- The Four-Method Connector Contract, and Knowing When to Stop: one connector boundary shared by six vendor integrations
- When the API Returns 500, Did the Charge Post or Not?: idempotent billing sync in production