Monitor · Analyze · Evolve

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See everything. Understand instantly. Analyse deeply.

Pathfinder— Monitor & Analyze
AgentEvolver— Eval & Improve
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Your agentworks in staging.

Then it meets real users and silently failsforgets contextgets stuck in loopshallucinatesfrustrates usersrefuses requests

Traditional monitoring catches code errors. But AI agents fail differently—they forget context, give vague answers, get stuck in loops. These failures don't throw exceptions. They silently frustrate your users.

90% of AI engineering is manually reviewing traces to understand what's happening. It's slow, expensive, and doesn't scale.

Sound familiar?

  • Your agent forgets user context mid-conversation
  • Confident answers that are completely wrong
  • Tool calls that fail silently
  • Users complaining but logs show nothing
  • Hours spent digging through traces
Pathfinder

Monitor.
Understand.

Sentry for AI agents. See every trace, detect every issue, search in natural language. Know exactly what your agent is doing in production.

  • Automatic issue detection—no rules to write
  • Natural language search across all traces
  • Real-time alerts before users complain
  • Deep analytics and pattern recognition
Issues Today23 detected
Agent stuck in loop
7x
Context forgotten
12x
Slow response time
4x
1.2M
Traces
4,521
Users
99.9%
Uptime

Detect

Silent failures, loops, hallucinations—caught automatically

Search

Natural language queries across millions of traces

Alert

Real-time Slack notifications. Daily digests.

Analyze

Patterns, trends, and insights surfaced automatically

The Unified Toolkit for Agent Behavior

P
pathfinder
home
events
signals
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users
issues
experimentsPRO
search
SIGNALS → NEGATIVE

ISSUES WITH BASH COMMANDS

users have problems with bash commands

STATUS: LIVE
EVENTS(24H): 0
CREATED: 3 MONTHS AGO
TIMEEVENTUSERASSISTANT
3:18 PM PSTchat_messagewhere are the double brackets?My apologies, it looks like I made an error...
1:59 PM PSTchat_messagethere should be double brackets when you perform...Thank you for pointing that out, I apologize...
1:31 PM PSTchat_messageerror: pathspec 'yaldeep-refactor' did not match...This error message is indicating that the specified...
Alerts

Know what happened.
Before users complain.

We send you alerts when your AI misbehaves and links straight to the events so you can dig into the conversations, understand the root cause, and fix it—fast.

P
PathfinderAPP
3:29 PM

What Happened Yesterday

Dec 2, 2024

Messages: 325 (+9%)

Users: 78 (+5%)

Issues: 3 detected (42 events across 18 users)

Wins

Users liked the assistant's tone and appreciated the life advice.

"The recent speed improvements are genuinely noticeable, especially on long inputs." — user_208

"Fewer false positives on moderation — way better now!" — user_642

Issues

Common Patterns: context retention, response quality, and task completion

Top Issues: Forgetting (+50%), User Frustration (-20%), Laziness

"It forgets what we talked about just 30 min ago." — user_391

"Answers feel vague and unhelpful, often just restating my question." — user_827

CAN YOU DESCRIBE IT?
THEN TRACK IT.

Track any behavior using just natural language. Pin-point issues and dive into traces to find the root cause.

the agent stuck in a loop
the assistant using filler words like 'tapestry'
users saying that the bot forgot something

FIND PATTERNS IN SIGNALS.

Log thumbs downs and tool calls with the SDK, create regex signals, or track any other behavior. We help you find the patterns in both positive and negative signals.

SIGNALS

24H3D7D30DCUSTOM
ForgettingClassifier
Task FailureClassifier
User FrustrationClassifier
User PraiseClassifier
GROUPNAMESOURCECREATEDEVENTSUSERS
NEGATIVERefusalsClassifier6/3/20251,8723,909%
NEGATIVELazinessClassifier8/14/20251,0532,199%
NEGATIVETask FailureClassifier6/3/20255571,163%
NEGATIVEBad Grammar SuggestionsClassifier11/11/20255071,058%
Deep Search

"Find all runs where agent gave financial advice without a disclaimer"

matches found in 2.3s47
unique failure patterns12
suggested fixes3
Pathfinder

Ask questions.
Get answers.

Natural language search across your entire trace history. Describe what you're looking for—we'll find every instance.

1
Search in plain English, not regex
2
Results in seconds, not hours
3
Turn any search into an ongoing monitor
Evolution Cycle #47Running
Eval Generation✓ Complete
RL Training78%
ValidationPending
+12%
Accuracy
-47%
Cost
AgentEvolver

Evaluate.
Evolve.

Don't just monitor—improve. Generate automated evals from production data, then let your agent evolve through self-supervised RL on real traces.

  • Automated eval generation from traces
  • Self-evolving agents via reinforcement learning
  • Distill expensive models into fast, cheap ones
  • Continuous improvement without manual intervention

Automated Evals

Generate evaluation datasets from production traces. Test before you ship.

Self-Evolving

Your agent improves continuously through RL on real user interactions.

Distillation

Train smaller, faster models that match your expensive model's performance.

Create an experiment.

Ship fast. Compare Anything. Measure truth.

Suggestions
📊LAST 5 DAYS VS. PREVIOUS 5 DAYS

Compare how your agent has changed over the last 5 days

🔄GEMINI-3-PRO VS. CLAUDE-4.5-SONNET

Compare performance between your top two AI models

EXPLORE REFUSALS

Focus on events with the Refusals issue and compare against all others

🐢EXPLORE LAZINESS

Focus on events with the Laziness issue and compare against all others

MEASURE AGENT BEHAVIOR
WITH EXPERIMENTS.

Use experiments to measure agent behavior by comparing models, tool calls, signals, feature flags and more. Ship fast. Compare anything. Measure truth.

Built by AI engineers, for AI engineers.

Our team has beaten
multiple SOTA benchmarks.

We spent thousands of hours staring at traces, debugging loops, and squeezing out every point of performance. These tools are what we wished we had.

Two lines of code.

You're done in 5 minutes.

Python
from aiagentco import pathfinder

pathfinder.init(api_key="...")
# Traces flow. Issues surface. Agent evolves.
Works with:LangChainLlamaIndexOpenAI SDKAnthropic
Security

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PII GuardENABLED

AI-powered, server-side PII redaction. Starting at $0.0002 per event.

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