feat(ai): Compute context utilization on AI spans#5814
Merged
constantinius merged 11 commits intomasterfrom Apr 16, 2026
Merged
feat(ai): Compute context utilization on AI spans#5814constantinius merged 11 commits intomasterfrom
constantinius merged 11 commits intomasterfrom
Conversation
Introduce a new `llmModelMetadata` global config that extends the existing model cost data with context window size. The new `ModelMetadata` struct replaces `ModelCosts` throughout the normalization pipeline, with `ModelCosts` only retained for backwards-compatible deserialization on GlobalConfig. When `ai_model_metadata` is present it is used entirely; otherwise `ai_model_costs` is converted to the new format as a fallback. For each AI span, if the model has a configured context size, set `gen_ai.context.window_size` and compute `gen_ai.context.utilization` as `total_tokens / context_window_size`. Co-Authored-By: Claude <noreply@anthropic.com>
![sentry[bot]](https://avatars.githubusercontent.com/in/12637?s=60&v=4){kind=small}
![cursor[bot]](https://avatars.githubusercontent.com/in/1210556?s=60&v=4){kind=small}
There was a problem hiding this comment.
Cursor Bugbot has reviewed your changes and found 1 potential issue.
❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.
Reviewed by Cursor Bugbot for commit c5f4e71. Configure here.
Member
|
See comment here getsentry/sentry#112656 (comment) |
jjbayer
approved these changes
Apr 16, 2026
Member
jjbayer
left a comment
jjbayer
left a comment
There was a problem hiding this comment.
Please update the PR description, the rest LGTM!
constantinius
changed the title
constantinius
deleted the
constantinius/feat/event-normalization/model-context-usage
branch
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Closes https://linear.app/getsentry/issue/TET-2220/relay-implement-context-window-usage-per-span
Builds on #5831 which introduced the
ModelMetadataglobal config with context window size.For each AI span, if the model has a configured context size, set
gen_ai.context.window_sizeand computegen_ai.context.utilizationastotal_tokens / context_window_size. These fields were introduced with getsentry/sentry-conventions#315Co-Authored-By: Claude noreply@anthropic.com