Blog
Field notes from building the execution layer between LLM agents and production APIs — credential security, schema-gating hallucinated payloads, absorbing rate limits and outages, and designing errors an LLM can self-correct from.
Open source · 6 min
Re-prompting on a 503 corrupts a good payload; retrying a 400 loops forever; rewriting args on a 401 never works. A small taxonomy — retry, re-prompt, escalate — and agenterr, the open-source library that implements it.
Engineering · 7 min
The five failure modes that turn an agent demo into an incident — hallucinated payloads, 429s and outages, timeouts mid-reasoning, double-executions, silent 2 a.m. failures — and the fix for each.
Security · 6 min
KMS-sealed at ingest, decrypted only in worker memory for one call, never stored in plaintext, redacted in every read and log. The design, and why it fails closed.
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