• Posted on

Guardrails First: Agents That Do Not Hallucinate

Threat model

  • Bad retrieval or missing context

  • Unsafe tool calls

  • Overconfident answers

  • Leaks of PII or secrets

Guardrail checklist

  1. Retrieval tests for top 20 intents

  2. Tool allow list and default deny

  3. Max token limits and safe prompts

  4. Redaction of PII in logs

  5. Fallback to templates when confidence is low

  6. Rollback switch that can be toggled by non engineers

Evals

  • Build a small but trusted set of questions and expected outputs

  • Score answers by correctness, safety, and action success

  • Run evals on every change and publish the delta

Observability

  • Log input, retrieved chunks, tool calls, and outputs

  • Tag with correlation ids

  • Store only what you need for debugging

Human in the loop

  • Route uncertain cases to a human queue

  • Give the human a one click accept or fix flow

  • Feed corrections back into the next daily loop

Compliance basics

  • Least privilege keys

  • Data stays in your systems

  • Delete test data on close of sprint

Start a 14 Day Agent Sprint and get a safe agent with a rollback switch and clear evals.

Read Also

See all Sprint Ledger