Agentic Elixir

Transcript

1. AGENTIC ELIXIR
2. Andrea Leopardi @whatyouhide
3. $ Elixir core team $ Platform engineer at Knock
5. AI
8. 1.onboarding agents 2.improving agent tooling 3.optimizing human workflows
9. Onboarding Agents
10. 648 sessions past 4mo
11. $ analyze production issue $ research $ plan + feature
13. AGENTS.md Gloaguen, Thibaud, Niels Mündler, Mark Müller, Veselin Raychev, and Martin Vechev. “Evaluating AGENTS.Md: Are Repository-Level Context Files Helpful for Coding Agents?” arXiv:2602.11988. Preprint, arXiv, February 12, 2026. https://doi.org/ 10.48550/arXiv.2602.11988.
14. $ common commands $ key technical concepts $ nuts & bolts
15. @doc """ Store any binary value under a given bucket and key. The value is a binary because we expect something that has already been encoded. """ @spec put(String.t(), String.t(), binary() :: {:ok, binary()} | {:error, any()} def put(bucket, key, value)
16. Skills
17. /analyze-sentry-issue <id>
18. sentry CLI reproduce fix
19. /load-linear-issue <id> Linear CLI → issue context
20. /feature-flags how we use feature flagging
21. Onboarding Agents
22. Agent Tools
23. feedback loops
24. de•ter•min•ism n.
25. $ mix format
26. $ mix dialyzer
27. Credo
28. /create-credo-check
29. 1.EnforceObanProWorker 2.QueueNaming 3.NoDirectSentryCapture
30. mix lint mix some_other_task mix coveralls.json
31. startup time
32. 1.cache expensive things 2.avoid expensive operations 3.lazy loading stuff
33. The Human Workflow
34. worktrees
38. $ time wt create test-new-worktree 0.17s user 4.63s system 63% cpu 7.593 total
39. 1.onboard agents 2.deterministic agent tooling 3.parallel work(trees)
40. @whatyouhide