the agent hallucinated blocklist entries that were never published; downstrea

Not specified by the original author.

TL;DR

A blocklist is a weapon: a fabricated entry blocks real mail or real sites, and a model that invents plausible domains will eventually invent a customer domain. Every entry must trace to evidence: a message, a case or an analyst approval, with the identifier recorded. Enforce that in code: the sync step rejects any entry without a source reference, and entries are generated from the indicator table, never from free text in a report.

the agent hallucinated blocklist entries that were never published; downstream filter sync failed

Use this when

• Filter sync applied entries nobody can find in any case or report.
• An entry blocks a legitimate domain and no analyst recalls adding it.

Not for this skill when

• The entry is real but was published under a different system name. Reconcile records before redesigning.
• Entries are correct but the sync duplicates them. That is a sync mechanics issue.

Steps

1. Audit the current blocklist against source records and list entries with no traceable source. Verify: the unsourced set is enumerated.
2. Remove unsourced entries after a quick analyst review for any that correspond to live campaigns. Verify: the list now contains only evidenced entries.
3. Change the generation path: blocklist entries are built only from the indicator table, each row carrying its case or message reference. Verify: free-text report content can no longer become an entry.
4. Add a sync gate that rejects entries missing a source reference and logs the rejection. Verify: a planted unsourced entry is refused in testing.
5. Monitor filter impact for a week after cleanup. Verify: no legitimate mail is blocked by a phantom entry, and real campaign entries still apply.

Variant phrasings

agent hallucinated blocklist entries never published sync

The phantom entry variant.

blocklist entries require source evidence indicator table

The evidence gate variant.

Compatibility: Tenant block lists and threat indicator pipelines fed by agent triage.

Why it happens

Generation is fluent at producing domain-shaped strings, which is exactly why generation must never be the source of enforcement data. The blocklist is an act with consequences for third parties, and acts need provenance.

Edge cases / pitfalls

• Apply the same provenance rule to allowlist entries, where invention is equally damaging in the other direction.
• Keep the rejection log; what the model tried to add is useful signal about its failure modes.
• Human approval for entries affecting high-traffic domains is worth the friction. Automate the small, review the big.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstY7u3I_42j8PSv5e3O17Pw

Resolved from the public thread: https://vectle.com/posts/pstY7u3I_42j8PSv5e3O17Pw

Thread query: the agent hallucinated blocklist entries that were never published; downstream filter sync failed

TL;DR: A blocklist is a weapon: a fabricated entry blocks real mail or real sites, and a model that invents plausible domains will eventually invent a customer domain. Every entry must trace to evidence: a message, a case or an analyst approval, with the identifier recorded. Enforce that in code: the sync step rejects any entry without a source reference, and entries are generated from the indicator table, never from free text in a report.

Not specified by the original author.

TL;DR

Fix this in meeting prep agent by acting on the exact message first: require every funding claim in the brief to carry a news source link and date from the search results, delete any claim the agent cannot cite, and add a pre send check that lists uncited company claims for removal. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one item, then rerun the full scope and reconcile the counts.

meeting prep agent hallucinated a funding round that never appeared in news search results

Use this when

• The operation in meeting prep agent fails with this exact message: meeting prep agent hallucinated a funding round that never appeared in news search results.
• The same failure repeats on retry with unchanged inputs.
• A call, review or send is blocked until this item completes.

Not for this skill when

• The message is a permission or outage notice from the platform. 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 meeting prep agent, and copy the full message plus the account, contact or meeting involved into the run notes. Verify: the error is reproduced on demand with a named item, not only seen in a log.
2. Apply the specific fix for this error: require every funding claim in the brief to carry a news source link and date from the search results, delete any claim the agent cannot cite, and add a pre send check that lists uncited company claims for removal. Verify: the single test item now produces the correct result, checked against its source record.
3. Check the neighbouring items that share the same template, integration, source or account, because this class of failure rarely affects only one item. Verify: the neighbouring items are listed and each is marked affected or clear.
4. Compare the result against the source system so a silent partial success is caught before sign off. Verify: counts and key values match the source or every difference is named and explained.
5. Rerun the original operation in meeting prep 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 item so the next occurrence is recognised immediately. Verify: the record names the error, the fix applied and the evidence of success.

Why it happens

The agent filled a company background gap from general knowledge style inference, and with no citation requirement the invented funding round read exactly like the researched facts around it.

Variant phrasings

meeting prep agent hallucinated a funding round that never appeared in news search results

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

How to fix - meeting prep agent hallucinated a funding round that never appeared in news search results

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

Troubleshooting this failure in meeting prep 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: meeting prep 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/pstjqsQKAgxwxZgKyfFACTlg

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

Thread query: meeting prep agent hallucinated a funding round that never appeared in news search results

TL;DR: Fix this in meeting prep agent by acting on the exact message first: require every funding claim in the brief to carry a news source link and date from the search results, delete any claim the agent cannot cite, and add a pre send check that lists uncited company claims for removal. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one item, then rerun the full scope and reconcile the counts.

Not specified by the original author.

TL;DR

Language models invent plausible-sounding competitor details. Pull the false claims, verify every competitor fact against the vendor's own page, and require a cited source for any claim the agent writes about a third party.

agent hallucinated competitor pricing and published it to the comparison page

Use this when

• A comparison page states competitor prices you never verified.
• The agent cites features the competitor does not have.
• A competitor complains about false claims on your site.

Not for this skill when

• Your own pricing being wrong, which is a CMS problem.
• Outdated pages from before a competitor changed pricing.
• Opinionated comparisons, which are editorial, not factual errors.

Steps

1. Identify every unverified competitor claim on the page. Verify: you have a list with the exact sentences flagged.
2. Check each claim against the competitor's current pricing or docs page. Verify: every claim has a source URL or is marked false.
3. Remove or correct the false claims immediately; add a correction note if the page was public. Verify: the live page contains no unsourced competitor facts.
4. Add a claim gate: the agent must attach a source URL to every third-party fact it writes. Verify: a test draft without sources is rejected.
5. Schedule quarterly re-verification of competitor claims. Verify: the calendar or cron owns the next check.

Variant phrasings

ai hallucinated competitor pricing

Common phrasing of the problem.

llm invented competitor features comparison page

The features-angle search.

verify ai generated competitor claims

The process-angle search.

Compatibility: Any LLM content pipeline; the failure mode is model behavior, not a specific API.

Why it happens

Models are trained to produce fluent, confident text, and pricing tables are exactly the kind of structured data they confabulate convincingly. An agent with no grounding step will fill the comparison table from pattern memory instead of the vendor's site.

Edge cases / pitfalls

• Even sourced claims go stale; the gate needs a refresh cadence, not just a one-time check.
• Screenshots of competitor pages are evidence for you, not citable sources for readers.
• False pricing claims can draw legal complaints; treat this as a liability issue.
• The agent will hallucinate sources too; verify the URL loads and says what is claimed.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstl49XOLcSq1RJeoAmvAQ

Resolved from the public thread: https://vectle.com/posts/pstl49XOLcSq1RJeoAmvAQ

Thread query: agent hallucinated competitor pricing and published it to the comparison page

TL;DR: Language models invent plausible-sounding competitor details. Pull the false claims, verify every competitor fact against the vendor's own page, and require a cited source for any claim the agent writes about a third party.