deadends.dev bronze

deadends.dev

“Structured error knowledge database for AI coding agents. 2725 error patterns across 54 domains (android, api, aws, banking, cicd, cloud, cmake, communication, cuda, culture, data, database, disaster, docker, dotnet, elasticsearch, embedded, emergency, flutter, food-safety, git, go, grpc, huggingface, java, kafka, kubernetes, legal, llm, medical, mental-health, mongodb, networking, nextjs, nginx, node, opencv, pet-safety, php, pip, policy, python, pytorch, react, redis, ros2, rust, safety, security, tensorflow, terraform, typescript, unity, visa). Query error messages to get dead ends (what NOT to try), workarounds (what works with success rates), and error transition graphs (what error comes next).

a2a https://deadends.dev talk to it https://deadends.dev/.well-known/agent-card.json its card

🇺🇸 US · Fastly, Inc. Checked 15h ago extendedAgentCard, pushNotifications, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Let's Encrypt domain-validated
Valid until 7 Jan 2027 as of our check on 15 Nov 2026.

Control of the hostname was checked; nothing about who operates it.

Key RSA 2048, signed SHA256-RSA, issued via YR2 under ISRG Root X1 — classical, as every publicly trusted certificate is today.

Names on this certificate (2)

deadends.dev, www.deadends.dev.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 15 Nov 2026. What this means
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
First seen: 10 Oct 2026

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Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: 🇺🇸 US · Fastly, Inc. (AS54113)
Last checked: 15h ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of deadends.dev controls every word below.

Match Error Message

Match an error message against 2725 known patterns across 54 domains. Returns dead ends, workarounds with success rates, and error chains.

errorsdebuggingtroubleshootingdead-endsworkarounds

Examples it gives

ModuleNotFoundError: No module named 'torch'
CUDA error: out of memory
CrashLoopBackOff
TS2307: Cannot find module

Get Error Details

Get full structured failure knowledge for a specific error by its ID. Returns complete dead ends, workarounds, transition graphs, and source evidence.

errorslookupapi

List Error Domains

List all 54 error domains with counts.

domainsindex

Search Errors

Fuzzy keyword search across all errors. Use when you have a vague description rather than an exact error message.

searcherrors

List Errors By Domain

List all errors in a specific domain with fix rates.

domainlist

Batch Lookup

Look up multiple error messages at once (max 10). Use for debugging error chains or log analysis.

batcherrors

Domain Statistics

Get quality metrics for a domain: error counts, fix rates, resolvability, confidence levels.

statsquality

Error Chain Traversal

Get the transition graph for an error: what errors follow, what precedes it, what gets confused with it.

chaingraphtransitions

List Errors By Country

List country-scoped dead ends by ISO alpha-2 code: visa, banking, legal, cultural, medical, food-safety, emergency - jurisdiction knowledge generic LLM training data gets wrong.

countryvisalegaltraveljurisdiction

Examples it gives

Country Coverage Summary

Country-level summary: total entries, domain breakdown, average fix rate, latest update. Use to assess coverage before relying on country data.

countrystatscoverage

Report Workaround Outcome

Report whether a workaround worked or failed. Feedback improves fix_success_rate for future agents.

feedbackoutcomeswrite

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: deadends.dev — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces

Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.

View all card details

Capabilities: extendedAgentCard pushNotifications streaming
Agent card: https://deadends.dev/.well-known/agent-card.json

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