Databases
PostgreSQL, MySQL and MongoDB, with read-only credentials. TraceX learns your schema and how tables link, and runs read-only queries only.
Connect your stack. TraceX reads, never writes.
TraceX connects to the systems where your data, code and signals live, with read-only access you can revoke at any time.
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Read-only queries, real answers
PostgreSQL, MySQL and MongoDB, through read-only credentials. TraceX writes the query, runs it, and keeps only what it found.
PostgreSQL· production · read-onlySELECT id, order_id, state, created_atFROM refundsWHERE state = 'pending' AND created_at > '2026-10-21'
| id | order_id | state | created_at |
|---|---|---|---|
| rf_9921 | 48213 | pending | Oct 21 09:12 |
| rf_9934 | 48190 | pending | Oct 21 11:40 |
| rf_9958 | 48236 | pending | Oct 22 08:03 |
| rf_9987 | 48271 | pending | Oct 23 16:55 |
| … 30 more rows | |||
34 rows · read-only query · no rows stored
34 refunds are stuck in pending, every one created after Oct 21.
The change behind the problem
Code, commits and deploys through the GitHub App. TraceX finds the change that caused it and opens the fix as a pull request.
payments-api· recent commitsRetry card errors in checkout a1c9e2 · Oct 22
Migration 0142: rename refund state pending → awaiting_payout 7f3b10 · Oct 21
Root causeBatch EU payouts 2d8e44 · Oct 20
Fix refund worker state filter #318
OpenOpened by TraceX from the investigation · 1 file changed
12 tests passedReview requested
The migration renamed the state; refunds.py still filters on the old one.
Errors, traced to the line
Issues and stack traces, matched to the deploy that started them.
checkout-web· issuesErrorTypeError: Cannot read properties of undefined (reading 'amount')
chargeCard · first seen Oct 22, 14:02
node_modules/stripe/lib/charges.jscreatesrc/checkout/payment.ts:88chargeCardsrc/checkout/submit.ts:41onSubmitIt started with deploy a1c9e2: on a retry the payment intent is undefined.
The logs around the moment
TraceX searches the logs at the time of the issue and picks out the lines that explain it.
Logs· service:checkout14:01:52INFOPOST /charge 200 order=48188
14:02:03WARNcard_error retry=1 order=48190
14:02:04INFOPOST /charge 200 order=48190
14:02:04INFOPOST /charge 200 order=48190
14:02:31WARNcard_error retry=1 order=48197
14:02:32INFOPOST /charge 200 order=48197
Each card error retried the charge without an idempotency key, so 6 orders were charged twice.
Logs Insights, written for you
TraceX writes the Logs Insights query, runs it, and reads the events.
CloudWatch Logs Insights· us-east-1fields @timestamp, @message| filter @logStream like /refund-worker/| sort @timestamp desc
10:03:00INFOrefund-worker: found 0 refunds to process
10:02:00INFOrefund-worker: found 0 refunds to process
10:01:00INFOrefund-worker: found 0 refunds to process
10:00:00INFOrefund-worker: found 0 refunds to process
The worker runs every minute and finds nothing: its filter no longer matches any refund.
Starts from the support inbox
Each new customer email starts an investigation, and ends with a reply ready to send.
support@· inboxMaria Chen
9:41Refund still not received · My refund from last week still hasn't arrived. Order #48213.
Investigation started
Root cause found · 93%
Reply drafted by TraceX
Hi Maria, thanks for your patience.We found the problem and fixed it.Your refund is on its way.
Ask where your team works
Mention TraceX in a thread and get the answer, with its evidence, right there.
#support· SlackP
Priya 2:14 PM
@TraceX why was order 48190 charged twice?
TraceX APP
A card error retried the charge without an idempotency key, so the second attempt charged again 1. 6 orders were hit on Oct 22 2.
✅ 2🙏 1
Tickets that come back solved
TraceX picks up the ticket, comments the root cause and links the fix.
SUP-212· SupportCheckout times out on Safari
To doIn reviewReported by 3 customers · Priority high
TraceX commented
Safari blocks the cookie the 3-D Secure frame needs, so the challenge never loads and checkout waits until it times out 1.
Fall back to a 3-D Secure redirect on Safari #321
Linked pull request
PostgreSQLMySQLMongoDBGitHubSentryDatadogCloudWatchGmail inboxSlackJiraCode
GitHub, through the TraceX GitHub App: code search, files, recent commits and deploys, pull requests and reviews.
Observability
Sentry issues and stack traces, Datadog and CloudWatch logs, correlated with the time of the issue.
Where issues arrive
A Gmail support inbox, Slack and Jira: TraceX starts investigations and answers questions where your team works.
AI models
Claude through Anthropic or AWS Bedrock, Gemini, and open-weight models on Bedrock, with automatic fallback.
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Use your own Anthropic or Gemini API key, so AI usage is billed to your account, never through TraceX.
Find the root cause.
Ship the fix.
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