ship agents
that never fail

the reliability layer for autonomous agents: see every failure, stop it in realtime.

trusted by developers from

The audits are the part that changed how we operate.

agents run.
failproof keeps them running.

01

infinite loop

DETECT
the agent is repeating itself and going nowhere.
CAUGHT
on loop_detected → steer
MITIGATE
summarize where it got to, try a new approach.
policy.loop.js
02

hallucination

DETECT
the agent called a tool or file that doesn't exist.
CAUGHT
on tool_not_found → steer
MITIGATE
block the call, tell the agent what does exist nearby.
policy.hallucination.js
03

context drift

DETECT
the agent has wandered away from the original goal.
CAUGHT
on goal_divergence → steer
MITIGATE
pull it back with a reminder of what it was supposed to do.
policy.drift.js
04

intent completion

DETECT
the agent finished the task but kept going anyway.
CAUGHT
on intent_complete → steer
MITIGATE
tell it the job is done. surface the result. prevent the damage.
policy.intent.js
05

dangerous action

DETECT
the agent is about to do something destructive.
CAUGHT
on destructive_command → steer
MITIGATE
show it a safe alternative. the command never runs.
policy.danger.js

catch every failure. stop it for good.

observe every run, find where agents fail, ship a policy, and enforce it in realtime.

see every run, end to end

every prompt, tool call and result, traced live and replayable.

One agent session, every event in order on a trace rail

find where they fail, for you

failures cluster themselves into named modes, so the pattern surfaces on its own.

Insights: open failures ranked by severity, each with what found it

ship a policy that stops it

take a built-in policy or write your own.

~/your-agent · policy.loop.js
$failproofai policies --install
# 39 built-in, drop-in
$failproofai policies --install --custom ./policy.loop.js
# or write your own
on loop_detected → steer: summarize, try a new approach
on dangerous_action → steer to a safe alternative
● plug & play · drop-in · one line · local-only

enforced live, across every harness

the bad action never runs, and the agent gets steered to what to do instead.

A policy enforcing on three machines, with the calls it denied
━━ CAN YOU KEEP THE AGENT ALIVE?

guiding the agent away from failure.

SNAKE= agentFRUIT= guiding policyGOAL= keep it off the pink

everything you need to run ai workers reliably

talk to your data

tells you what you need to see without hunting for signals

decision model policies and evals

a model judges what a regex can’t.

sentiment analysis

flags frustrated or angry users.

policies learnt from your data

drafted from what your agents actually did.

mcp

your agent works with your failproof data.

slack integration

alerts post to your team’s channel.

works with all your agents

claude code
openai codex
cursor
copilot
gemini cli
opencode
pi
hermes
openclaw
goose
deep agents
langgraph

keeping agents running reliably while you sleep

7,771developers
167cities
39countries

notes from making agents failproof

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predictable, designed to scale

free forever

$0 forever

  • 5,000 runs / month
  • unlimited policy enforcement
  • open source, MIT, self-hosted
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Scale

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  • 500,000 runs / month
  • auto policy authoring
  • RBAC and SSO / SAML
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  • SOC 2 and compliance reporting
  • forward-deployed engineer
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