Last reviewed: 2026-06-12
Direct answer
Documentation drift occurs when SDK code examples or integration guides reference request fields, response fields, endpoint paths, or authentication schemes that no longer match the live API contract. For CometAPI integrations, the most common drift points are the chat completions endpoint and the responses endpoint, where field names and response structure can change independently.
To check for drift:
- Pull the current endpoint reference from the official CometAPI docs — chat completions at /api/text/chat, responses at /api/text/responses.
- Compare every request field in your SDK example against the documented required and optional fields for that endpoint.
- Confirm that the response fields your code reads are present in the current documented response shape.
- Send a minimal live request and log the actual response keys against the fields your SDK example asserts.
If any field your example sends or reads is absent from the current docs, that example has drifted and should be updated before it reaches production.
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Who this is for
This guide is for developers and integration teams who:
- Maintain SDK examples, tutorials, or internal runbooks that call CometAPI endpoints.
- Want a repeatable process for catching field-name or path changes before they break production code.
- Are preparing an integration for handoff or review and need to confirm that every code example matches the current documented contract.
If you are also validating end-to-end behavior in a production context, see Validate CometAPI Chat Completions for Production for a complementary production readiness workflow. For endpoint migration guidance, see Migration Checks for the CometAPI Responses Endpoint.
Key takeaways
- Documentation drift in SDK examples is most reliably caught by comparing example request fields against the current endpoint reference before running any code, not by running examples and hoping for errors.
- The two highest-drift areas in CometAPI integrations are the request body field set — especially optional fields that may be renamed or deprecated — and the response envelope structure. Verify both against /api/text/chat and /api/text/responses before publishing any example.
- A minimal live request to each endpoint you reference is the most reliable single-step drift check. Record the HTTP status code, the top-level response keys present, and the model field value you used.
- The models overview at /overview/models is the authoritative reference for valid model identifiers. Any SDK example that hard-codes a model string should be checked against this page before publication.
- When live behavior and the current docs disagree, treat the discrepancy as a candidate issue rather than validating your example against observed behavior. Contact the CometAPI support channel before shipping an example that relies on undocumented behavior.
Smoke-test workflow
Use this workflow before publishing or updating any SDK example that calls a CometAPI endpoint.
Setup assumptions
- You have a valid API credential for a CometAPI account. Verify the auth header name and scheme in the current endpoint reference before using any example credential format — do not assume a specific header name or token format without checking the docs.
- You are using a non-production credential in a development or sandboxed environment.
- The endpoint path in your example matches the current path shown in the official docs (confirm this first; do not rely on a cached or copied path).
Happy-path request plan
Send a minimal request to the endpoint under review using only the fields documented as required in the current reference. Do not add optional fields on the first pass. Record:
- The HTTP status code returned (verify the documented success code in the current endpoint reference before asserting).
- The top-level keys present in the response body.
- Whether the output field your SDK example reads is present and non-empty.
- The model identifier string you sent and whether it matched a value from the current models overview.
Error-path check
Send the same request with a deliberately invalid input — for example, a field name not present in the current docs, or an empty value for a required field. Record:
- The HTTP status code returned.
- Whether the error response shape matches the structure your SDK example’s error handler expects.
- Whether the error body keys your code reads are documented in the current endpoint reference.
Minimum assertions
- HTTP status matches the documented success code for the endpoint.
- The response contains the field(s) your SDK example reads.
- No request field you send is absent from the current docs for that endpoint.
- The model identifier you used is present in the current /overview/models reference.
Pass/fail log record
Record the following fields after each smoke run. Use placeholder values in any published version of this template — do not log real credentials, full prompts, or complete response bodies.
checked_at: YYYY-MM-DDTHH:MM:SSZ endpoint_path: /api/text/ http_status: docs_request_fields_match: true|false docs_response_fields_match: true|false model_id_confirmed_in_docs: true|false error_path_response_shape_match: true|false notes: <free text — no credentials or full response bodies>
What this smoke test must not assert
- Specific response latency or throughput figures — these are not part of the documented request/response contract.
- Exact pricing or billing amounts for the request.
- The availability of a specific model identifier that you have not first confirmed in the current /overview/models reference.
- Specific rate-limit thresholds — verify these in the current docs if your example includes rate-limit handling code.
Failure modes
- Evidence gap: the agent cannot inspect the failing log, source page, pull request, or local command output. The safe action is to stop and record the missing evidence instead of guessing.
- Scope drift: the agent edits files that are not connected to the observed failure. Keep the repair tied to the failing signal and leave unrelated cleanup for a separate task.
- Environment mismatch: the local check uses different versions, credentials, feature flags, or runtime settings than the hosted path. Record the mismatch before treating the result as proof.
- Unreviewed fallback: the agent changes models, endpoints, permissions, or retry behavior to make a run pass without preserving the review boundary. Treat access and provider failures as operational blockers, not topic failures.
- Weak handoff: the final note says the issue is fixed but omits the command, result, changed files, and remaining uncertainty. That makes the next operator repeat the investigation.
Sources checked
- CometAPI documentation - accessed 2026-06-12; purpose: verify current CometAPI documentation navigation.
- CometAPI chat completions reference - accessed 2026-06-12; purpose: verify chat completion contract areas.
- CometAPI responses reference - accessed 2026-06-12; purpose: verify responses endpoint contract areas.
- CometAPI models overview - accessed 2026-06-12; purpose: verify model catalog discovery guidance.
- CometAPI help center - accessed 2026-06-12; purpose: verify support and escalation documentation areas.
Contract details to verify
| Area | What to verify | Source URL | Accessed | Safe candidate wording |
|---|---|---|---|---|
| Chat completions request fields | Confirm all required and optional field names in your SDK example match the current reference before publishing | https://apidoc.cometapi.com/api/text/chat | 2026-06-12 | “Send only fields documented as required or optional in the current chat completions reference.” |
| Chat completions response shape | Confirm the top-level response keys and the output field your code reads are present in the current docs | https://apidoc.cometapi.com/api/text/chat | 2026-06-12 | “Read only response fields documented in the current chat completions reference.” |
| Responses endpoint request fields | Confirm field names and required-field status match the current responses reference, especially if your example compares both endpoints | https://apidoc.cometapi.com/api/text/responses | 2026-06-12 | “Verify responses endpoint field names in the current reference before publishing a comparison example.” |
| Responses endpoint response shape | Confirm the output structure your SDK example reads is present in the current responses docs | https://apidoc.cometapi.com/api/text/responses | 2026-06-12 | “Read only response fields documented in the current responses endpoint reference.” |
| Authentication scheme | Confirm the auth header name and value format your example uses matches the current endpoint docs — do not assume a specific header name or Bearer format without checking | https://apidoc.cometapi.com/api/text/chat | 2026-06-12 | “Use the authentication scheme documented in the current endpoint reference.” |
| Error response shape | Confirm the error fields and status codes your example handles match the current documented error contract | https://apidoc.cometapi.com/api/text/chat | 2026-06-12 | “Handle only error fields and codes documented in the current endpoint reference.” |
Reader next step
Compare the workflow against Start with CometAPI.
Use How to Smoke-test the CometAPI Chat Completion Contract as the next comparison point. Keep Review a CometAPI chat completions contract nearby for setup and permission checks.
FAQ
What is documentation drift in the context of API SDK examples?
Documentation drift means your SDK example references API details — field names, endpoint paths, response keys, or model identifiers — that no longer match the live API contract. It typically happens when the API updates and example code is not re-checked against the current docs, or when an example is copied from an older guide without verification.
Which CometAPI endpoints are most likely to drift?
Based on the available documentation, the chat completions endpoint (/api/text/chat) and the responses endpoint (/api/text/responses) are the two primary text-generation endpoints. Request and response field names in these endpoints are the most common drift point in integration examples. Check the current reference for each endpoint before publishing or updating any example that calls either one.
How often should I check SDK examples for drift?
A practical cadence is to re-check any example against the current docs whenever you update the example, whenever the docs announce a change, or before any production release that includes new API calls. For published tutorial content that stays live, a periodic review against the current endpoint references — at least monthly — is a reasonable baseline.
What if my SDK example produces a different response shape than the current docs describe?
Treat the discrepancy as a potential issue requiring investigation before shipping. Do not publish an example that relies on an undocumented response shape. Consult the CometAPI Help Center to determine whether the behavior is intentional, and update your example only after the contract is confirmed.
Can I use any model identifier string in my SDK example?
Only model identifiers confirmed in the current /overview/models reference should be used in published examples. Identifiers that appear in older examples or copied snippets may no longer be valid. Confirm the current list before hard-coding any model string in an example intended for others to run.
Where can I learn more about validating CometAPI integrations?
See How to Validate the CometAPI Model Catalog Before Integration for model catalog checks, and How to Smoke-test the CometAPI Chat Completion Contract for a focused smoke-test workflow against the chat completions contract.