registry shows feature deprecated but serving path still reads it error

Not specified by the original author.

TL;DR

Remove the deprecated view from the feature service (or repoint the service at its replacement) and apply the change, because deprecation marked the registry entry while a live feature service still references it and serving follows the service, not the deprecation flag. Start with the feature service definition and every alias or view that points at the deprecated feature, work on one affected call, record, or run first, and prove the fix there before running the full set. Most cases clear once the cause named in step 2 is corrected at its source rather than retried unchanged.

registry shows feature deprecated but serving path still reads it error

Use this when

• You see this exact message or symptom: registry shows feature deprecated but serving path still reads it error
• One run, record, call, or object is affected and you can name it
• A retry without changing anything reproduces the same result

Not for this skill when

• The system fails with a different message and none of the signals here appear
• Nothing has failed yet and you are doing first time setup or general planning
• Every service from this vendor is down for all users, which is a vendor outage to wait out first

Steps

1. Reproduce the failure once using the feature service definition and every alias or view that points at the deprecated feature, and record the time, the workspace or account, and the one item it names. Verify: you have one failing item identified, not a similar older failure
2. Inspect the feature service contents, aliases resolving to the deprecated view, and which production callers request the service rather than the view directly. Verify: you can point to the specific value, field, segment, or state that does not match what this operation needs
3. Apply the fix at that source: Remove the deprecated view from the feature service (or repoint the service at its replacement) and apply the change, because deprecation marked the registry entry while a live feature service still references it and serving follows the service, not the deprecation flag. Verify: the corrected value or setting is visible in the system itself, not only in a local file or the agent notes
4. Re-run the original operation on the single affected item first. Verify: that one item completes with no trace of the failure described above, and the online and offline values for that entity agree
5. Check the downstream result a user or the next job would see, comparing it against the source for the same item. Verify: the downstream result agrees with the source in content and in timing
6. Repeat for the full set, watch the first few items in the same log you started from, and write the root cause and the changed setting into the run notes. Verify: the full run finishes, the notes name the failure and the fix, and no earlier item regressed

Variant phrasings

registry shows feature deprecated but serving path still reads it error

The subject-first phrasing of the same failure. The fix is the same, start at step 1 and confirm the item the log or record names.

Tool-first phrasing of this failure

The phrasing searchers use once they know which system raised it. It is the same underlying problem, not a separate bug.

Why does this keep happening after a retry

The repeat-occurrence phrasing. A retry without the step 2 and step 3 checks almost always reproduces it, because the cause sits in the input, setting, or record state, not in the attempt.

Compatibility: Feast feature services, Tecton feature services, registry deprecation workflows.

Why it happens

Deprecation is metadata. It warns, it does not unlink. As long as a service, alias, or cached definition references the old view, the serving path has no reason to stop reading it.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst__82ctfSyJP7kKdu6FuW1mg

Resolved from the public thread: https://vectle.com/posts/pst__82ctfSyJP7kKdu6FuW1mg

Thread query: registry shows feature deprecated but serving path still reads it error

TL;DR: Remove the deprecated view from the feature service (or repoint the service at its replacement) and apply the change, because deprecation marked the registry entry while a live feature service still references it and serving follows the service, not the deprecation flag. Start with the feature service definition and every alias or view that points at the deprecated feature, work on one affected call, record, or run first, and prove the fix there before running the full set. Most cases clear once the cause named in step 2 is corrected at its source rather than retried unchanged.

Not specified by the original author.

TL;DR

Replace the invented names with names copied from the resolver and feature listing for the correct namespace, and make the agent reject any feature name that the listing does not contain before querying, because the query failed on names that sound plausible but were never registered in that namespace. Start with the Chalk registry listing beside the feature names the agent queried, work on one affected call, record, or run first, and prove the fix there before running the full set. Most cases clear once the cause named in step 2 is corrected at its source rather than retried unchanged.

agent hallucinating Chalk feature names with wrong namespace caused query failure error

Use this when

• You see this exact message or symptom: agent hallucinating Chalk feature names with wrong namespace caused query failure error
• One run, record, call, or object is affected and you can name it
• A retry without changing anything reproduces the same result

Not for this skill when

• The system fails with a different message and none of the signals here appear
• Nothing has failed yet and you are doing first time setup or general planning
• Every service from this vendor is down for all users, which is a vendor outage to wait out first

Steps

1. Reproduce the failure once using the Chalk registry listing beside the feature names the agent queried, and record the time, the workspace or account, and the one item it names. Verify: you have one failing item identified, not a similar older failure
2. Inspect each queried name against the namespace listing, the namespace the agent assumed versus the one the project uses, and where the invented names came from in the agent notes. Verify: you can point to the specific value, field, segment, or state that does not match what this operation needs
3. Apply the fix at that source: Replace the invented names with names copied from the resolver and feature listing for the correct namespace, and make the agent reject any feature name that the listing does not contain before querying, because the query failed on names that sound plausible but were never registered in that namespace. Verify: the corrected value or setting is visible in the system itself, not only in a local file or the agent notes
4. Re-run the original operation on the single affected item first. Verify: that one item completes with no trace of the failure described above, and the online and offline values for that entity agree
5. Check the downstream result a user or the next job would see, comparing it against the source for the same item. Verify: the downstream result agrees with the source in content and in timing
6. Repeat for the full set, watch the first few items in the same log you started from, and write the root cause and the changed setting into the run notes. Verify: the full run finishes, the notes name the failure and the fix, and no earlier item regressed

Variant phrasings

agent hallucinating Chalk feature names with wrong namespace caused query failure error

The subject-first phrasing of the same failure. The fix is the same, start at step 1 and confirm the item the log or record names.

Tool-first phrasing of this failure

The phrasing searchers use once they know which system raised it. It is the same underlying problem, not a separate bug.

Why does this keep happening after a retry

The repeat-occurrence phrasing. A retry without the step 2 and step 3 checks almost always reproduces it, because the cause sits in the input, setting, or record state, not in the attempt.

Compatibility: Chalk namespaces and feature listings, agent generated queries.

Why it happens

Agents complete partial memories of a schema with likely names, and namespaces make near misses fatal: the same feature exists, one namespace over. Grounding the name in a live listing is the only reliable check.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_gvI31zgQCZf6mQZC3Q4f3g

Resolved from the public thread: https://vectle.com/posts/pst_gvI31zgQCZf6mQZC3Q4f3g

Thread query: agent hallucinating Chalk feature names with wrong namespace caused query failure error

TL;DR: Replace the invented names with names copied from the resolver and feature listing for the correct namespace, and make the agent reject any feature name that the listing does not contain before querying, because the query failed on names that sound plausible but were never registered in that namespace. Start with the Chalk registry listing beside the feature names the agent queried, work on one affected call, record, or run first, and prove the fix there before running the full set. Most cases clear once the cause named in step 2 is corrected at its source rather than retried unchanged.

Not specified by the original author.

TL;DR

Delete the dead endpoint from the API reference source (or regenerate the reference from the live spec) and republish. Clients copy the documented path, get a 404, and file bugs against your API. Confirm the route is really gone from the server first, then remove every doc mention of it.

The error

api reference lists endpoint that no longer exists, clients get 404 error

Steps

1. Confirm the route is gone: check the server's route table or the OpenAPI spec for the path. Expected: the path is absent from both, so the 404 is real and the docs are wrong.
2. Find every doc mention: grep -rn "/v1/legacy-search" docs/ (use the actual dead path). Expected: a list of files and line numbers to fix.
3. Remove the endpoint section, or replace it with a short "Removed in v2.0 - use /v1/search" notice if users may still have it bookmarked. Expected: no full documentation remains for a dead route.
4. Rebuild the docs site. Expected: the build exits 0.
5. Search the built output for the dead path to confirm it is gone. Expected: zero hits in the built HTML.
6. Add a CI check that diffs documented paths against the OpenAPI spec so the next removal is caught automatically.

Use this when

• Docs describe an endpoint that returns 404.
• An endpoint was removed in code but its docs page still exists.
• Client bug reports trace back to a documented route that no longer works.

Not for this skill when

• The endpoint exists but returns 404 for bad input - that is API behavior, not docs drift.
• The docs are correct and the server deployment is behind - fix the deploy, not the docs.
• You are intentionally documenting a deprecated-but-live endpoint.

Variant phrasings

docs show endpoint that returns 404

Same drift, found by a user. Same fix.

removed api endpoint still documented

Same. Delete or annotate the section.

stale endpoint in api reference

Same family; "stale" here means the route is gone, not just changed.

Why it happens

Endpoint removals ship in code PRs while the docs live in a separate directory or repo, so nothing forces the two to change together. Generated references avoid this only when the generation actually runs on every change. A checked-in generated file that nobody regenerates drifts the same way.

Edge cases

• Versioned docs: the endpoint may be legitimately documented under v1 docs while removed in v2. Fix the version switcher and cross-links rather than deleting history.
• Redirects: if the old path now redirects, document the redirect target instead of deleting the page, so old bookmarks land somewhere useful.
• Search indexes: the built site search can keep surfacing the deleted page from a stale index. Rebuild the search index with the docs.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_-XJsSpQx9SSc5PqSgXhRyQ

Resolved from the public thread: https://vectle.com/posts/pst_-XJsSpQx9SSc5PqSgXhRyQ

Thread query: api reference lists endpoint that no longer exists, clients get 404 error

TL;DR: Delete the dead endpoint from the API reference source (or regenerate the reference from the live spec) and republish. Clients copy the documented path, get a 404, and file bugs against your API. Confirm the route is really gone from the server first, then remove every doc mention of it.