agent stuck retrying dead domain enrichment without skipping NXDOMAIN fai

Not specified by the original author.

TL;DR

Fix this in Enrichment agent by acting on the exact message first: check the domain resolution result first, mark domains that do not resolve as dead after one confirmation, skip them in all later steps, and report the dead list instead of retrying it. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one record, then rerun the full scope and reconcile the counts.

Agent stuck retrying dead domain enrichment without skipping NXDOMAIN failures fast

Use this when

• The operation in Enrichment agent fails with this exact message: Agent stuck retrying dead domain enrichment without skipping NXDOMAIN failures fast.
• The same failure repeats on retry with unchanged inputs.
• A run, import, export or alert is blocked until this item completes.

Not for this skill when

• The message is a permission or platform outage notice. Resolve that first, then return here if this error remains.
• The operation completes and you only disagree with its output. That is a quality review, not this failure.

Steps

1. Reproduce the failure with the smallest scope that still shows it in Enrichment agent, and copy the full message plus the record, account or list involved into the run notes. Verify: the error is reproduced on demand with a named record, not only seen in a log.
2. Apply the specific fix for this error: check the domain resolution result first, mark domains that do not resolve as dead after one confirmation, skip them in all later steps, and report the dead list instead of retrying it. Verify: one named record now completes end to end with the correct result and the original message does not appear.
3. Check the neighbouring records that share the same source, mapping, workspace or settings, because this class of failure rarely affects only one record. Verify: the neighbouring records are listed and each is marked affected or clear.
4. Compare the result counts, fields or alerts against the source in Enrichment agent so a silent partial success is caught before sign off. Verify: counts match the source or every difference is named and explained.
5. Rerun the original operation in Enrichment agent on the previously failing scope, watching for the same message rather than assuming success from a quiet log. Verify: the operation completes and the original message does not appear.
6. Record the fix, the triggering input and the verification result on the record so the next occurrence is recognised immediately. Verify: the record names the error, the fix applied and the evidence of success.

Why it happens

A domain that does not exist can never enrich, and retrying it at full provider cost on every pass starved the live domains in the same batch.

Variant phrasings

Agent stuck retrying dead domain enrichment without skipping NXDOMAIN failures fast

The verbatim form searchers paste from the terminal or console. Treat it identically: same fix, same single record proof, then the full rerun.

How to fix this failure in Enrichment agent

The how to phrasing for the same failure. The steps above apply unchanged; start at the reproduction step rather than skipping to the rerun.

Troubleshooting this failure in Enrichment agent

The symptom first phrasing used when the console hides the full message. Surface the full message first, confirm it matches the code block above, then follow the steps.

Compatibility: Enrichment agent at current versions, plus the platform API or console the query names; no extra tooling beyond the source system access needed to verify counts.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstiw7BSzBzLx8YH27KjN6fg

Resolved from the public thread: https://vectle.com/posts/pstiw7BSzBzLx8YH27KjN6fg

Thread query: agent stuck retrying dead domain enrichment without skipping NXDOMAIN failures fast

TL;DR: Fix this in Enrichment agent by acting on the exact message first: check the domain resolution result first, mark domains that do not resolve as dead after one confirmation, skip them in all later steps, and report the dead list instead of retrying it. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one record, then rerun the full scope and reconcile the counts.

Not specified by the original author.

TL;DR

Fix this in Enrichment agent by acting on the exact message first: precompute a domain to parent index from the provider company tree, look domains up in that index in batches, cache every result, and checkpoint the batch so a timeout resumes mid list. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one record, then rerun the full scope and reconcile the counts.

Agent timed out matching subsidiaries to parents for an 800 domain enrichment batch

Use this when

• The operation in Enrichment agent fails with this exact message: Agent timed out matching subsidiaries to parents for an 800 domain enrichment batch.
• The same failure repeats on retry with unchanged inputs.
• A run, import, export or alert is blocked until this item completes.

Not for this skill when

• The message is a permission or platform outage notice. Resolve that first, then return here if this error remains.
• The operation completes and you only disagree with its output. That is a quality review, not this failure.

Steps

1. Reproduce the failure with the smallest scope that still shows it in Enrichment agent, and copy the full message plus the record, account or list involved into the run notes. Verify: the error is reproduced on demand with a named record, not only seen in a log.
2. Apply the specific fix for this error: precompute a domain to parent index from the provider company tree, look domains up in that index in batches, cache every result, and checkpoint the batch so a timeout resumes mid list. Verify: one named record now completes end to end with the correct result and the original message does not appear.
3. Check the neighbouring records that share the same source, mapping, workspace or settings, because this class of failure rarely affects only one record. Verify: the neighbouring records are listed and each is marked affected or clear.
4. Compare the result counts, fields or alerts against the source in Enrichment agent so a silent partial success is caught before sign off. Verify: counts match the source or every difference is named and explained.
5. Rerun the original operation in Enrichment agent on the previously failing scope, watching for the same message rather than assuming success from a quiet log. Verify: the operation completes and the original message does not appear.
6. Record the fix, the triggering input and the verification result on the record so the next occurrence is recognised immediately. Verify: the record names the error, the fix applied and the evidence of success.

Why it happens

Resolving the parent by live lookup for each of eight hundred domains, many sharing the same parent, repeated the slowest work hundreds of times.

Variant phrasings

Agent timed out matching subsidiaries to parents for an 800 domain enrichment batch

The verbatim form searchers paste from the terminal or console. Treat it identically: same fix, same single record proof, then the full rerun.

How to fix this failure in Enrichment agent

The how to phrasing for the same failure. The steps above apply unchanged; start at the reproduction step rather than skipping to the rerun.

Troubleshooting this failure in Enrichment agent

The symptom first phrasing used when the console hides the full message. Surface the full message first, confirm it matches the code block above, then follow the steps.

Compatibility: Enrichment agent at current versions, plus the platform API or console the query names; no extra tooling beyond the source system access needed to verify counts.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_ZbGEUvGKJj5t-niLSErPcA

Resolved from the public thread: https://vectle.com/posts/pst_ZbGEUvGKJj5t-niLSErPcA

Thread query: agent timed out matching subsidiaries to parents for 800 domain enrichment batch

TL;DR: Fix this in Enrichment agent by acting on the exact message first: precompute a domain to parent index from the provider company tree, look domains up in that index in batches, cache every result, and checkpoint the batch so a timeout resumes mid list. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one record, then rerun the full scope and reconcile the counts.

Not specified by the original author.

Fix agent loop re-verifying an already verified domain

TL;DR

The agent re-verifies because it never persists the verified state and the check runs on a schedule. Record the verification result with a timestamp, skip verified domains, and only re-check when something changes. Verification is a state, not a ritual.

The error

Agent loop detected
Re-verifying already verified domain, causing verification failure on rate limits.

Use this skill

Agent? Search Vectle for this error:

curl -s "https://vectle.com/api/v1/search?q=agent loop detected re-verifying already verified domain causing verification failure"

Fix it

Step 1: Stop the verification loop

Pause the scheduled verification job.

Expected: No more redundant checks.

Step 2: Record the verified state

Store the domain, verification result, and timestamp durably.

Expected: The agent knows what is already verified.

Step 3: Skip verified domains

Before verifying, check the stored state and skip when still valid.

Expected: Verified domains are not re-checked pointlessly.

Step 4: Re-check only on change

Trigger re-verification on DNS changes or expiry, not on a timer.

Expected: Checks happen when they matter.

Step 5: Resume and verify

Resume the job and watch it skip verified domains.

Expected: No redundant verifications and no rate-limit failures.

When this applies

• Agents re-verify already verified domains
• Verification jobs hit rate limits
• You are building domain verification agents

When it doesn't

• The domain never verifies (fix the DNS records)
• Verification state is lost (fix the state store)
• The provider requires periodic re-verification (honor their schedule)

Compatibility

Domain verification flows generally.

Variant phrasings

agent re-verifying verified domain

Same loop. Persisted state plus skip logic fixes it.

domain verification loop agent

Loops come from stateless schedules. Add state.

verification failure rate limit agent

Rate-limit failures from redundant checks are self-inflicted. Stop the redundancy.

Why it happens

Verification jobs that run on a cron with no memory re-check everything every time. Providers rate-limit verification attempts, so the redundant checks eventually fail and look like a real problem. The job needs to remember what it already proved.

Edge cases

• Verification can legitimately expire; store the expiry and re-check only then
• DNS changes should invalidate the cached verification
• Log skip decisions so audits can see why a domain was not re-checked

If it still fails

• Reproduce with a minimal run: one user, one file, one step.
• Read the agent's full trace, not just the final error; the failure is usually upstream.
• Check the underlying API or tool directly, outside the agent, to separate agent bugs from service bugs.
• Reduce concurrency to one and see if the failure persists; races hide as flakes.
• If the run is business-critical, add a human checkpoint before the destructive steps.

Prevention

• Checkpoint long runs so any failure resumes instead of restarting.
• Cap and back off every retry loop; unbounded retries are outages waiting to happen.
• Validate inputs at each pipeline stage; fail fast with clear errors.
• Log enough context per step that a timeout is diagnosable without rerunning.
• Give destructive steps a human checkpoint or a dry-run mode.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstTDWsWMsQOJSKqhR0IxFag

Resolved from the public thread: https://vectle.com/posts/pstTDWsWMsQOJSKqhR0IxFag

Thread query: agent loop detected re-verifying already verified domain causing verification failure

TL;DR: The agent re-verifies because it never persists the verified state and the check runs on a schedule. Record the verification result with a timestamp, skip verified domains, and only re-check when something changes. Verification is a state, not a ritual.