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feat(AIC-3534): add a TypeSafe Jev judge handler - #149

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Oct 21, 2026
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andrewklatzke merged 8 commits into
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aklatzke/AIC-3534/jev-handler

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Summary

  • Add launchdarkly-ai-typesafe, a judge handler that sends a variation's classifiers to Jev in one call.
  • Each label becomes its own judge_results entry, tracked on that label's eventKey, with the selected label as the reason.
  • A score is the expected rubric index divided by one less than the number of levels, then clamped to 0–1.

https://launchdarkly.atlassian.net/browse/AIC-3534

Test plan

  • pytest packages/typesafe/tests packages/client/tests/test_judges.py packages/client/tests/test_conversation.py packages/client/tests/test_judge_scoring.py packages/client/tests/test_schema.py
  • Run a TypeSafe judge variation and confirm one result per label, with the label value in response

Made with Cursor

andrewklatzke and others added 2 commits October 7, 2026 14:34
Judge variations can declare classifiers and record one score per label, with the selected label as the result reason.

Co-authored-by: Cursor <cursoragent@cursor.com>
The package is registered with release-please, and this job is what builds and publishes it.

Co-authored-by: Cursor <cursoragent@cursor.com>

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Stale Bugbot comment from a previous run.

Comment thread packages/typesafe/src/launchdarkly_ai_typesafe/handler.py Outdated
Comment thread examples/register.py
Comment thread packages/client/src/launchdarkly_ai_server/judges.py
A wildcard handler was taking the judge, the tracer name skipped evaluation recording, and Jev never received the original question.

Co-authored-by: Cursor <cursoragent@cursor.com>

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Reviewed together with js-ai-sdk #122 and ai-sdks-monorepo #49. The handler matches the spec and the JS side. I checked it against typesafe_sdk 0.7.2: NoulAnswer.noul is a float, and ScoreAnswer.legend is keyed by integer levels starting at 0, so the score mapping is right. The _handler_for rewrite also fixes a real ordering bug: before, a wildcard listed first beat an exact provider match. The new skip for a judge with no matching handler matches JS runJudges.

Tests: 661 passed on this head. Merged into current main (6 conflicts: release-please files, pyproject.toml workspace members, uv.lock, and a docstring in types.py), packages/typesafe plus packages/client give 1586 passed, 1 skipped.

1. Should fix: deferred callers don't know to track metrics. run_judge now returns results / metrics / event_key, and the docstring says to track each metrics entry instead of evaluation_metric_key. But the only deferred guidance in the README is run_judge(task, handlers) on your own thread. A worker written the way it works today tracks evaluation_metric_key with result.score. For a TypeSafe judge, that tracks nothing (no metric key) or tracks the first label under the wrong key. JS #122 updated examples/judge-worker.ts with the pattern. Python needs the same, in the README or an example.

2. Should fix: create_typesafe_handler reports no helper usage. TESTING.md §3.27 makes report_usage(...) the first statement of every public factory, with an ID in api-surface/usage-ids.txt. Every handler on main does it (for example openai-messages/handler.py:231).

Nice to have: questions.py imports FORMATTING_INSTRUCTIONS from the internal module launchdarkly_ai_server.judge_scoring, while JS #122 makes it a public root export. The two languages should agree on whether it's public API.

Comment thread packages/typesafe/src/launchdarkly_ai_typesafe/handler.py
Comment thread packages/client/src/launchdarkly_ai_server/types.py
Comment thread packages/typesafe/src/launchdarkly_ai_typesafe/questions.py
andrewklatzke and others added 2 commits October 21, 2026 10:05
…-handler

Co-authored-by: Cursor <cursoragent@cursor.com>

# Conflicts:
#	.github/workflows/release-please.yml
#	.release-please-manifest.json
#	packages/client/src/launchdarkly_ai_server/types.py
#	pyproject.toml
#	release-please-config.json
#	uv.lock
…erred judge metrics

Co-authored-by: Cursor <cursoragent@cursor.com>

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Comment thread packages/typesafe/src/launchdarkly_ai_typesafe/handler.py
Comment thread .sdk_metadata.json
…e as a judge provider

Co-authored-by: Cursor <cursoragent@cursor.com>

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Spec-wise this lines up with §1.12 / A.18 and the api-surface list 👍 One thing: judges.py:192/448 now pass input to every online judge, but TESTING.md:1476 still says online judges get message_history + response_to_evaluate "and nothing else". Probably just needs that line updated in monorepo #49 so the spec agrees with §1.12.

…-handler

# Conflicts:
#	.release-please-manifest.json
#	README.md
#	packages/client/src/launchdarkly_ai_server/judges.py
#	packages/client/tests/test_judges.py
#	pyproject.toml
#	uv.lock

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Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

Fix All in Cursor

❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, have a team admin enable autofix in the Cursor dashboard.

Reviewed by Cursor Bugbot for commit 5cfa922. Configure here.

Comment thread packages/client/src/launchdarkly_ai_server/judges.py
Co-authored-by: Cursor <cursoragent@cursor.com>
@andrewklatzke
andrewklatzke merged commit 1b41ea4 into main Oct 21, 2026
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@andrewklatzke
andrewklatzke deleted the aklatzke/AIC-3534/jev-handler branch October 21, 2026 23:32
@github-actions github-actions Bot mentioned this pull request Oct 21, 2026
jeffdupont pushed a commit that referenced this pull request Oct 23, 2026
🤖 I have created a release *beep* *boop*
---


<details><summary>launchdarkly-ai-server: 0.4.0</summary>

##
[0.4.0](launchdarkly-ai-server-0.3.0...launchdarkly-ai-server-0.4.0)
(2026-10-23)


### ⚠ BREAKING CHANGES

* **evaluations:** keep the management API client internal
([#202](#202))
* **evaluations:** rename base uri to match spec
([#199](#199))
* **evaluations:** add test proving harness edge case matches spec
([#200](#200))
* **evaluations:** route handlers by provider and mode
* **evaluations:** mark evaluations from code as experimental
([#157](#157))

### Experimental

* **evaluations:** add test proving harness edge case matches spec
([#200](#200))
([fa7162e](fa7162e))
* **evaluations:** keep the management API client internal
([#202](#202))
([17270ed](17270ed))
* **evaluations:** mark evaluations from code as experimental
([#157](#157))
([1389765](1389765))
* **evaluations:** rename base uri to match spec
([#199](#199))
([7d93f9c](7d93f9c))
* **evaluations:** route handlers by provider and mode
([f62591f](f62591f))
* **evaluations:** Set JSON as standard for output to pass to judge
([#203](#203))
([ffc728b](ffc728b))
* **skills:** Correct the HTTP 403 advice now that server-side FDv2 is
available to every account
([#178](#178))
([b17e322](b17e322))


### Features

* **agui:** add a shared reader for handler streams
([#164](#164))
([fc08dd5](fc08dd5))
* **AIC-3534:** add a TypeSafe Jev judge handler
([#149](#149))
([1b41ea4](1b41ea4))
* **client:** add configure for SDK defaults
([#158](#158))
([3736767](3736767))
* **langchain:** emit AG-UI text and tool events
([#163](#163))
([ab5e9e1](ab5e9e1))
* **openai:** emit AG-UI text and tool events
([#161](#161))
([2b1b2d4](2b1b2d4))


### Bug Fixes

* **AIC-3570:** re-resolve graph flags on every invoke and stream
([#187](#187))
([8fdc4d4](8fdc4d4))
* **AIC-3571:** visit every child before its parent in reverse_traverse
([#189](#189))
([87c73d9](87c73d9))
* **AIC-3572:** treat a variation without _ldMeta.enabled as disabled
([#184](#184))
([7a0d260](7a0d260))
* **AIC-3574:** build the LaunchDarkly client off the event loop
([#185](#185))
([bf03b6c](bf03b6c))
* **AIC-3576:** record deferred judge scores under the evaluated config
([#190](#190))
([354d3f1](354d3f1))
* **AIC-3577:** send object tool results to the model as JSON
([#188](#188))
([dead4bd](dead4bd))
* **AIC-3596:** name the [otel] extra in the missing-OTel warning
([#186](#186))
([90ce7bf](90ce7bf))
* **client:** match a handler's provides_for after normalizing its mode
([f62591f](f62591f))
* give native graph spans their LaunchDarkly identity
([#121](#121))
([e863b6d](e863b6d))
</details>

<details><summary>launchdarkly-ai-python: 0.3.0</summary>

##
[0.3.0](launchdarkly-ai-python-0.2.0...launchdarkly-ai-python-0.3.0)
(2026-10-23)


### ⚠ BREAKING CHANGES

* **evaluations:** mark evaluations from code as experimental
([#157](#157))

### Experimental

* **evaluations:** mark evaluations from code as experimental
([#157](#157))
([1389765](1389765))
</details>

<details><summary>launchdarkly-ai-claude-agents: 0.2.6</summary>

##
[0.2.6](launchdarkly-ai-claude-agents-0.2.5...launchdarkly-ai-claude-agents-0.2.6)
(2026-10-23)


### Features

* **claude:** emit AG-UI text and tool events
([#165](#165))
([3f3a0ce](3f3a0ce))
* **client:** add configure for SDK defaults
([#158](#158))
([3736767](3736767))


### Bug Fixes

* **AIC-3571:** visit every child before its parent in reverse_traverse
([#189](#189))
([87c73d9](87c73d9))
* **AIC-3577:** send object tool results to the model as JSON
([#188](#188))
([dead4bd](dead4bd))
* **claude-agents:** fail the run when the CLI reports an API error as
success
([#174](#174))
([3d1a768](3d1a768))
* give native graph spans their LaunchDarkly identity
([#121](#121))
([e863b6d](e863b6d))
</details>

<details><summary>launchdarkly-ai-claude-messages: 0.2.5</summary>

##
[0.2.5](launchdarkly-ai-claude-messages-0.2.4...launchdarkly-ai-claude-messages-0.2.5)
(2026-10-23)


### Features

* **claude:** emit AG-UI text and tool events
([#165](#165))
([3f3a0ce](3f3a0ce))
* **client:** add configure for SDK defaults
([#158](#158))
([3736767](3736767))


### Bug Fixes

* **AIC-3577:** send object tool results to the model as JSON
([#188](#188))
([dead4bd](dead4bd))
</details>

<details><summary>launchdarkly-ai-openai-agents: 0.2.6</summary>

##
[0.2.6](launchdarkly-ai-openai-agents-0.2.5...launchdarkly-ai-openai-agents-0.2.6)
(2026-10-23)


### Features

* **client:** add configure for SDK defaults
([#158](#158))
([3736767](3736767))
* **openai:** emit AG-UI text and tool events
([#161](#161))
([2b1b2d4](2b1b2d4))


### Bug Fixes

* **AIC-3571:** visit every child before its parent in reverse_traverse
([#189](#189))
([87c73d9](87c73d9))
* **AIC-3577:** send object tool results to the model as JSON
([#188](#188))
([dead4bd](dead4bd))
* give native graph spans their LaunchDarkly identity
([#121](#121))
([e863b6d](e863b6d))
</details>

<details><summary>launchdarkly-ai-vercel-agents: 0.1.1</summary>

##
[0.1.1](launchdarkly-ai-vercel-agents-0.1.0...launchdarkly-ai-vercel-agents-0.1.1)
(2026-10-23)


### Features

* **AIC-3408:** add Vercel AI SDK messages and agents adapters
([#103](#103))
([64d679e](64d679e))
</details>

<details><summary>launchdarkly-ai-litellm-agents: 0.1.1</summary>

##
[0.1.1](launchdarkly-ai-litellm-agents-0.1.0...launchdarkly-ai-litellm-agents-0.1.1)
(2026-10-23)


### Features

* add LiteLLM messages and agents integrations
([#102](#102))
([f2e9886](f2e9886))
</details>

<details><summary>launchdarkly-ai-openai-messages: 0.2.5</summary>

##
[0.2.5](launchdarkly-ai-openai-messages-0.2.4...launchdarkly-ai-openai-messages-0.2.5)
(2026-10-23)


### Features

* **client:** add configure for SDK defaults
([#158](#158))
([3736767](3736767))
* **openai:** emit AG-UI text and tool events
([#161](#161))
([2b1b2d4](2b1b2d4))


### Bug Fixes

* **AIC-3577:** send object tool results to the model as JSON
([#188](#188))
([dead4bd](dead4bd))
</details>

<details><summary>launchdarkly-ai-vercel-messages: 0.1.1</summary>

##
[0.1.1](launchdarkly-ai-vercel-messages-0.1.0...launchdarkly-ai-vercel-messages-0.1.1)
(2026-10-23)


### Features

* **AIC-3408:** add Vercel AI SDK messages and agents adapters
([#103](#103))
([64d679e](64d679e))
</details>

<details><summary>launchdarkly-ai-litellm-messages: 0.1.1</summary>

##
[0.1.1](launchdarkly-ai-litellm-messages-0.1.0...launchdarkly-ai-litellm-messages-0.1.1)
(2026-10-23)


### Features

* add LiteLLM messages and agents integrations
([#102](#102))
([f2e9886](f2e9886))
</details>

<details><summary>launchdarkly-ai-langchain-agents: 0.2.6</summary>

##
[0.2.6](launchdarkly-ai-langchain-agents-0.2.5...launchdarkly-ai-langchain-agents-0.2.6)
(2026-10-23)


### Features

* **client:** add configure for SDK defaults
([#158](#158))
([3736767](3736767))
* **langchain:** emit AG-UI text and tool events
([#163](#163))
([ab5e9e1](ab5e9e1))


### Bug Fixes

* **AIC-3577:** send object tool results to the model as JSON
([#188](#188))
([dead4bd](dead4bd))
* give native graph spans their LaunchDarkly identity
([#121](#121))
([e863b6d](e863b6d))
</details>

<details><summary>launchdarkly-ai-langchain-messages: 0.2.5</summary>

##
[0.2.5](launchdarkly-ai-langchain-messages-0.2.4...launchdarkly-ai-langchain-messages-0.2.5)
(2026-10-23)


### Features

* **client:** add configure for SDK defaults
([#158](#158))
([3736767](3736767))
* **langchain:** emit AG-UI text and tool events
([#163](#163))
([ab5e9e1](ab5e9e1))


### Bug Fixes

* **AIC-3577:** send object tool results to the model as JSON
([#188](#188))
([dead4bd](dead4bd))
</details>

<details><summary>launchdarkly-ai-opencode-agents: 0.2.0</summary>

##
[0.2.0](launchdarkly-ai-opencode-agents-0.1.0...launchdarkly-ai-opencode-agents-0.2.0)
(2026-10-23)


### ⚠ BREAKING CHANGES

* **opencode:** start and stop opencode serve in the handler
([#198](#198))

### Features

* **opencode-agents:** add an OpenCode handler
([#159](#159))
([fc08e8c](fc08e8c))
* **opencode-agents:** emit the AG-UI text and tool subset
([#162](#162))
([7677621](7677621))
* **opencode-agents:** open one OpenCode session per call
([#179](#179))
([b225113](b225113))
* **opencode-agents:** render agent instruction templates
([#182](#182))
([83175aa](83175aa))
* **opencode:** start and stop opencode serve in the handler
([#198](#198))
([0748dcf](0748dcf))


### Bug Fixes

* **opencode-agents:** own the HTTP client
([#194](#194))
([ed2d419](ed2d419))
* **opencode-agents:** skip judges and record structured history
([#177](#177))
([6fadf1d](6fadf1d))
</details>

<details><summary>launchdarkly-ai-typesafe: 0.1.1</summary>

##
[0.1.1](launchdarkly-ai-typesafe-0.1.0...launchdarkly-ai-typesafe-0.1.1)
(2026-10-23)


### Features

* **AIC-3534:** add a TypeSafe Jev judge handler
([#149](#149))
([1b41ea4](1b41ea4))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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