feat(bindings): add event metadata injector APIs - #815
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Signed-off-by: Eric Evans <194135482+ericevans-nv@users.noreply.github.com>
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**/*.{py,rs,go,js,jsx,ts,tsx}📄 CodeRabbit inference engine (.agents/skills/validate-change/SKILL.md)
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**/*.{rs,h,c,cc,cpp}📄 CodeRabbit inference engine (.agents/skills/validate-change/SKILL.md)
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crates/{core,adaptive}/**/*.rs⚙️ CodeRabbit configuration file
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python/**/*.py📄 CodeRabbit inference engine (.agents/skills/test-python-binding/SKILL.md)
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python/nemo_relay/*.py📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
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python/nemo_relay/**/*⚙️ CodeRabbit configuration file
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crates/node/**/*.{js,ts,jsx,tsx,json}📄 CodeRabbit inference engine (.agents/skills/test-node-binding/SKILL.md)
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crates/node/**/*.{ts,tsx,d.ts}📄 CodeRabbit inference engine (.agents/skills/test-node-binding/SKILL.md)
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**/*.{js,ts}📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
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**/*.{js,jsx,ts,tsx}📄 CodeRabbit inference engine (.agents/skills/validate-change/SKILL.md)
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crates/core/src/**/*.rs📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
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crates/core/src/api/**/*.rs📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
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🔇 Additional comments (10)
WalkthroughAdds prioritized event metadata injector APIs for Python and Node.js. Injectors support synchronous and asynchronous callbacks, global and scope-local registration, plugin ownership, deregistration, cleanup, and typed metadata results. ChangesEvent metadata injection
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🔵 Low · up to The PR adds public event metadata injector APIs across Python and Node.js, with reported validation covering the supported registration paths. A bounded Node.js type-contract mismatch remains: type-checked callbacks may produce metadata rejected at runtime, so merge is reasonable with explicit owner follow-up. Sequence Diagram(s)sequenceDiagram
participant PluginContext
participant CallbackWrapper
participant InjectorRegistry
participant Event
PluginContext->>CallbackWrapper: Register injector with name and priority
CallbackWrapper->>InjectorRegistry: Register sync or async callback
InjectorRegistry->>CallbackWrapper: Invoke callback for event
CallbackWrapper->>InjectorRegistry: Return metadata map
InjectorRegistry->>Event: Apply prioritized metadata
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@crates/node/plugin.d.ts`:
- Around line 215-219: Define an EventMetadata type representing
Relay-compatible flat metadata values: primitives, homogeneous primitive arrays,
and empty arrays; exclude objects, null, and nested arrays. Replace the
Record<string, Json> result types in registerEventMetadataInjector and the
corresponding plugin, global, and scope-local Node callback declarations with
Record<string, EventMetadata>, reusing the shared type consistently.
In `@docs/build-plugins/language-binding/register-behavior.mdx`:
- Line 45: Update the “Register event metadata injectors” heading to title case:
“Register Event Metadata Injectors.”
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crates/node/plugin.d.tscrates/node/src/api/mod.rscrates/node/src/callable.rscrates/node/tests/event_metadata_injection_tests.mjscrates/python/src/py_api/mod.rscrates/python/src/py_callable.rscrates/python/src/py_plugin.rscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rsdocs/build-plugins/language-binding/register-behavior.mdxpython/nemo_relay/__init__.pypython/nemo_relay/__init__.pyipython/nemo_relay/_native.pyipython/nemo_relay/event_metadata.pypython/nemo_relay/plugin.pypython/nemo_relay/plugin.pyipython/nemo_relay/scope_local.pypython/tests/test_event_metadata_injection.py
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**/*.mdx
📄 CodeRabbit inference engine (.agents/skills/review-doc-style/SKILL.md)
MDX top-of-file SPDX comments must use {/* ... */} delimiters instead of HTML comment delimiters (Must-Fix)
**/*.mdx: In MDX files, top-of-file comments must use JSX comment delimiters:
{/*to open and*/}to close. Do not use HTML comments for MDX SPDX
headers.
New or regenerated MDX files use{/* ... */}for top-of-file SPDX comments
**/*.mdx: Usejust docsfor docs-site builds andjust docs-linkcheckwhen links
changed.
Files:
docs/build-plugins/language-binding/register-behavior.mdx
{docs,examples}/**/*
📄 CodeRabbit inference engine (.agents/skills/rename-surfaces/SKILL.md)
Update docs and examples.
Files:
docs/build-plugins/language-binding/register-behavior.mdx
**/*.{md,mdx,rst}
📄 CodeRabbit inference engine (.agents/skills/review-doc-style/assets/nvidia-style-technical-docs.md)
**/*.{md,mdx,rst}: Use title case consistently for technical documentation headings and table headers; avoid quotation marks, ampersands, and exclamation marks in headings, while preserving official product, event, research, and whitepaper title case.
Format code elements, commands, parameters, package names, expressions, directories, file names, and paths in monospace; represent path placeholders with angle brackets inside monospace.
Format UI buttons, menus, fields, and labels in bold, and separate consecutive UI navigation labels with>.
Use quotation marks for error messages and strings when appropriate, italics for newly introduced terms and publication titles, and plain text for keyboard shortcuts.
Represent GitHub repositories with owner/repository link text, such as[NVIDIA/NeMo](link), rather than generic repository wording.
Introduce every code block with a complete sentence; do not let a code block complete or interrupt the grammar of surrounding prose; use syntax highlighting when supported.
Keep inline method, function, and class references consistent with nearby documentation; omit empty parentheses in prose when no call is shown.
Use descriptive link text matching the destination title when possible; avoid raw URLs, generic anchors, long-sentence links, and unnecessary links that distract from procedures.
Ensure lists have a complete lead-in sentence, more than one item, no more than two levels, parallel construction, one idea or action per item, and appropriate punctuation; use bullets for unordered items and numbers for ordered tasks.
Format definition lists with a bold term followed by a complete, parallel, punctuated definition.
Use tables for reference information, decision support, compatibility matrices, and comparable choices; flag one-row tables, missing captions or lead-ins, sentence-case headers where title case is expected, unexplained empty cells, and code or links that would be clearer as prose.
Write procedure steps as imperative ...
Files:
docs/build-plugins/language-binding/register-behavior.mdx
docs/**/*.mdx
📄 CodeRabbit inference engine (.agents/skills/test-python-binding/SKILL.md)
For documentation-only changes, prefer
contribute-docsplus targeted command checks.
Files:
docs/build-plugins/language-binding/register-behavior.mdx
**/*.{md,mdx}
📄 CodeRabbit inference engine (AGENTS.md)
Keep stable public wrappers at the
scripts/root in docs and examples. Reference namespaced helper paths only when documenting internal maintenance work.
**/*.{md,mdx}: Prefer the documented public API, not internal shortcuts
Keep package names, repo references, and build commands current
When documenting contribution workflow, require an issue before external contribution PRs and note that NVIDIA contributors may use a GitHub or Linear issue.
Update entry-point docs when examples or reading paths change
Keep release-process and release-notes guidance in repo-maintainer docs such as
RELEASING.md, not as user-facing docs pages orCHANGELOG.md
Keep stable user-facing wrappers atscripts/root in docs and examples;
only point at namespaced helper paths when documenting internal maintenance
work
When detailed dynamic plugin guides exist, keep Rust native plugin examples,
Python worker plugin examples, andgrpc-v1protocol details on separate
pages.
Relevant getting-started or reference docs updated
Example commands still match current package names and paths
Dynamic plugin entry pages link to native, worker, Rust example, Python
example, and protocol pages when those pages exist
Images, diagrams, tables, and custom visual content remain legible and
fully accessible at representative desktop and narrow page widths
Release-policy docs still point to GitHub Releases as the only release-history source of truth
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docs/build-plugins/language-binding/register-behavior.mdx
**/*.{rs,py,go,js,ts,html,md,mdx,toml}
📄 CodeRabbit inference engine (CONTRIBUTING.md)
All source files must include an SPDX license header.
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docs/build-plugins/language-binding/register-behavior.mdxcrates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*
📄 CodeRabbit inference engine (CONTRIBUTING.md)
**/*: Every commit in a pull request must include a Developer Certificate of Origin sign-off.
CI must pass before merging.
UseSONAR_IGNORE_START/SONAR_IGNORE_ENDonly for documented false
positives that cannot be resolved in code or by improving the analyzer
configuration.
Keep the ignored block as small as possible, add a brief comment
explaining why the suppression is needed, and call it out in the PR description
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**/*: - [ ] Branch scope is coherent and reviewable
Relevant tests passed under
validate-changeDocs and examples updated for any public behavior changes
Pull request title follows Conventional Commit style and uses the correct
type
Use Conventional Commit style for PR titles:
Only check the contribution confirmation boxes when they are true. If either
confirmation cannot be made, stop before opening the PR and surface the blocker.SPDX license header on any new files
**/*: Tool execution callbacks and each execution-interceptnextcontinuation
return the canonicalToolExecutionResult { result, annotation }. A forwarding
intercept must preserve both fields inToolExecutionInterceptOutcome; Relay
retainspending_marksseparately.
Tool sanitize-response guardrails receive
onlyresult.
- Registration and duplicate-name behavior
- Deregistration and no-op missing-name behavior
- Ordering by priority
- Callback failure policy, including fail-open behavior when required
- Scope-local registration, inheritance, and cleanup on pop
- Parity coverage in every affected binding
**/*: Keep NeMo Relay optional
Use stable, documented framework or plugin APIs
Wrap tool and LLM paths at the correct framework boundary
Preserve the framework's original behavior when NeMo Relay is absent
Integration uses public framework or plugin A...
Files:
docs/build-plugins/language-binding/register-behavior.mdxcrates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pypython/nemo_relay/_native.pyicrates/python/tests/coverage/py_callable_coverage_tests.rscrates/node/tests/event_metadata_injection_tests.mjspython/nemo_relay/plugin.pyicrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pypython/nemo_relay/__init__.pyicrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
docs/**
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Run
just docswhen the docs site changed;./scripts/build-docs.sh htmlremains the compatibility wrapper
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docs/build-plugins/language-binding/register-behavior.mdx
**/*.{md,mdx,rs,py,go,js,ts}
📄 CodeRabbit inference engine (.agents/skills/maintain-observability/SKILL.md)
- Update docs and examples in the same branch.
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docs/build-plugins/language-binding/register-behavior.mdxcrates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
{docs/**,README.md,CONTRIBUTING.md,RELEASING.md,SECURITY.md}
⚙️ CodeRabbit configuration file
{docs/**,README.md,CONTRIBUTING.md,RELEASING.md,SECURITY.md}: Review documentation for technical accuracy against the current API, command correctness, and consistency across language bindings.
Flag stale examples, missing SPDX headers where required, and instructions that no longer match CI or pre-commit behavior.
Files:
docs/build-plugins/language-binding/register-behavior.mdx
crates/node/**/*.{js,ts,jsx,tsx,json}
📄 CodeRabbit inference engine (.agents/skills/test-node-binding/SKILL.md)
Format changed Node files with
npm run format --workspace=nemo-relay-node
Files:
crates/node/plugin.d.ts
crates/node/**/*.{ts,tsx,d.ts}
📄 CodeRabbit inference engine (.agents/skills/test-node-binding/SKILL.md)
Use
npm run check:docstrings --workspace=nemo-relay-nodeto validate public API docstring checks when surface docs changed
Files:
crates/node/plugin.d.ts
**/*.{rs,py,js,mjs,ts,go,c,h}
📄 CodeRabbit inference engine (AGENTS.md)
Keep SPDX headers on source, docs, scripts, and configuration files. The project is Apache-2.0.
Files:
crates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/node/tests/event_metadata_injection_tests.mjscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.{rs,py,js,mjs,ts}
📄 CodeRabbit inference engine (AGENTS.md)
Keep async behavior on the existing tokio-based model. Bindings should preserve callback and future lifetimes rather than blocking or hiding async work unexpectedly.
Files:
crates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/node/tests/event_metadata_injection_tests.mjscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.{rs,py,go,js,ts}
📄 CodeRabbit inference engine (CONTRIBUTING.md)
**/*.{rs,py,go,js,ts}: Run tests for every language affected by your changes. If your change touches the core Rust crate, run tests across all bindings since they all depend on it.
When adding new functionality, include tests in the appropriate test files for each affected language binding.
**/*.{rs,py,go,js,ts}: - [ ] Do all bindings expose the same logical knobs and semantics?
- Does every OpenTelemetry endpoint require a type and nonblank destination?
- Does each endpoint resolve
header_envvalues at activation and reject
missing, blank, or duplicate headers?- Are OpenTelemetry and OpenInference dependencies unconditional rather
than Cargo feature-gated?- Does
enable_full_payloadspreserve complete sanitized LLM request input
and annotations while leaving credential removal and sanitizers active?- Does Relay derive compliant trace and span IDs consistently across typed
OpenTelemetry endpoints while preserving lifecycle parentage?- Are mark events, start/end events, and orphan cases still handled correctly?
- Do examples and docs use each exporter's documented flush/deregister
order before shutdown?- Run the affected Rust crate tests plus
just test-rustif event
fields changed.- Run
just test-python,just test-go, andjust test-nodewhen
binding-native config or lifecycle changed.
Files:
crates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.{rs,py,pyi,go,js,ts}
📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
**/*.{rs,py,pyi,go,js,ts}: 6. Validation
Run the validation matrix from thevalidate-changeskill for the affected
surfaces.
- Tests added in every affected language surface
Files:
crates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pypython/nemo_relay/_native.pyicrates/python/tests/coverage/py_callable_coverage_tests.rspython/nemo_relay/plugin.pyicrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pypython/nemo_relay/__init__.pyicrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.{js,ts}
📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
| Node.js |
camelCase|toolCall|
Files:
crates/node/plugin.d.ts
**/*.{py,rs,go,js,jsx,ts,tsx}
📄 CodeRabbit inference engine (.agents/skills/validate-change/SKILL.md)
**/*.{py,rs,go,js,jsx,ts,tsx}: If a language surface changed, always run that language's test target even when
Rust core did not change.
Files:
crates/node/plugin.d.tspython/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.{js,jsx,ts,tsx}
📄 CodeRabbit inference engine (.agents/skills/validate-change/SKILL.md)
Use
test-node-binding.
Files:
crates/node/plugin.d.ts
crates/{python,ffi,node}/**/*
⚙️ CodeRabbit configuration file
crates/{python,ffi,node}/**/*: Treat binding changes as public API changes. Check for parity with the other language bindings, FFI ownership/lifetime safety,
callback error propagation, stable type conversion, and consistent async/stream semantics.
Flag changes that update one binding without corresponding tests or documentation for the same surface elsewhere.
Files:
crates/node/plugin.d.tscrates/python/tests/coverage/py_callable_coverage_tests.rscrates/node/tests/event_metadata_injection_tests.mjscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rscrates/python/src/py_plugin.rscrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
python/**/*.py
📄 CodeRabbit inference engine (.agents/skills/test-python-binding/SKILL.md)
python/**/*.py: Format changed Python wrapper and test files withuv run ruff format python python/plugin.
Runuv run ruff format python python/pluginafter changing Python wrapper or test files.
Files:
python/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pypython/nemo_relay/plugin.pypython/nemo_relay/scope_local.pypython/nemo_relay/__init__.py
python/tests/**/*.py
📄 CodeRabbit inference engine (.agents/skills/test-python-binding/SKILL.md)
python/tests/**/*.py: Use pytest to run Python tests.
Do not add@pytest.mark.asyncioto tests; async tests are automatically detected by the async runner.
Do not add a-> Nonereturn type annotation to test functions.
When mocking a class, useunittest.mock.MagicMockorunittest.mock.AsyncMock, usingspecwhen necessary, rather than defining a new class.
Prefix mocked class names withmock, notfake.
Prefer pytest fixtures over helper methods.
If a fixture is needed in multiple test files, define it in aconftest.pyfile instead of repeating it.
Define fixtures using@pytest.fixture(name="<fixture_name>"[, scope="<scope>"])and a<fixture_name>_fixturefunction; specifyscopeonly when it is notfunction.
Preferpytest.mark.parametrizeover separate tests for different input types.
Run focused pytest tests first when the affected area is known, and run the full suite withjust test-pythonbefore review.
Files:
python/tests/test_event_metadata_injection.py
**/*.{rs,py}
📄 CodeRabbit inference engine (AGENTS.md)
Follow binding naming conventions: Rust and Python
snake_case, C FFI exports prefixednemo_relay_, GoPascalCasefor public APIs, Node.jscamelCase.
Files:
python/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.py
📄 CodeRabbit inference engine (CONTRIBUTING.md)
**/*.py: Linting: Ruff with rule setsE,F,W,I
Formatting: Ruff formatter (line length 120, double quotes)
Type checking: tyUse
test-python-binding.
Files:
python/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pypython/nemo_relay/plugin.pypython/nemo_relay/scope_local.pypython/nemo_relay/__init__.py
**/*.{py,pyi}
📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
**/*.{py,pyi}: 3. Language-native bindings
Update Python, Go, and Node.js for every surface that should expose the
capability.
| Python |snake_case|nemo_relay.tools.call|
Files:
python/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pypython/nemo_relay/_native.pyipython/nemo_relay/plugin.pyipython/nemo_relay/plugin.pypython/nemo_relay/__init__.pyipython/nemo_relay/scope_local.pypython/nemo_relay/__init__.py
{crates,python}/**/*.{rs,py}
📄 CodeRabbit inference engine (.agents/skills/maintain-dynamic-plugins/SKILL.md)
Rust and Python SDKs expose every supported registration surface.
Files:
python/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rspython/nemo_relay/plugin.pycrates/python/tests/coverage/py_plugin_coverage_tests.rspython/nemo_relay/scope_local.pycrates/python/src/py_plugin.rspython/nemo_relay/__init__.pycrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
{crates/**/tests/**,python/tests/**,go/nemo_relay/**/*_test.go}
⚙️ CodeRabbit configuration file
{crates/**/tests/**,python/tests/**,go/nemo_relay/**/*_test.go}: Tests should cover the behavior promised by the changed API surface, including error paths and cross-request isolation where relevant.
Prefer assertions on lifecycle events, scope stacks, middleware ordering, and binding parity over shallow smoke tests.
Files:
python/tests/test_event_metadata_injection.pycrates/python/tests/coverage/py_callable_coverage_tests.rscrates/node/tests/event_metadata_injection_tests.mjscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rs
python/nemo_relay/*.py
📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
- Python wrapper with docstring in
python/nemo_relay/<module>.py
Files:
python/nemo_relay/event_metadata.pypython/nemo_relay/plugin.pypython/nemo_relay/scope_local.pypython/nemo_relay/__init__.py
python/nemo_relay/**/*
⚙️ CodeRabbit configuration file
python/nemo_relay/**/*: Review Python wrapper changes for typed API consistency, contextvars-based scope isolation, async behavior, and parity with the native extension.
Stubs and runtime implementations should stay aligned.
Files:
python/nemo_relay/event_metadata.pypython/nemo_relay/_native.pyipython/nemo_relay/plugin.pyipython/nemo_relay/plugin.pypython/nemo_relay/__init__.pyipython/nemo_relay/scope_local.pypython/nemo_relay/__init__.py
python/nemo_relay/*.pyi
📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
- Python type stubs updated in the relevant
python/nemo_relay/*.pyimodules
Files:
python/nemo_relay/_native.pyipython/nemo_relay/plugin.pyipython/nemo_relay/__init__.pyi
**/*.rs
📄 CodeRabbit inference engine (.agents/skills/test-ffi-surface/SKILL.md)
**/*.rs: Runcargo fmt --allfor all FFI work since it is Rust work
Runjust test-rustto validate FFI changes
Runcargo clippy --workspace --all-targets -- -D warningsto enforce strict linting on FFI workWhen Rust files changed as part of Go work, also run
cargo fmt --all,just test-rust, andcargo clippy --workspace --all-targets -- -D warnings
**/*.rs: Runcargo fmt --allwhen Rust files are changed as part of Node work
Runcargo clippy --workspace --all-targets -- -D warningswhen Rust files are changed as part of Node work
Runjust test-rustwhen Rust files are changed as part of Node work
**/*.rs: UseJson = serde_json::Valuein Rust-facing runtime APIs where the existing code expects JSON payloads.
UseResult<T>withFlowErrorin core runtime paths. Keep errors explicit and binding-appropriate at the wrapper layer.
**/*.rs: Formatting:cargo fmt(rustfmt defaults)
Linting:cargo clippy -- -D warnings-- all warnings are treated as errors
Dependency auditing:cargo deny check-- configured indeny.toml
**/*.rs: If any Rust code changed, also runcargo fmt --all.
If any Rust code changed, also runcargo clippy --workspace --all-targets -- -D warnings.
Usetest-rust-core. This always includesjust test-rust,
cargo fmt --all,cargo clippy --workspace --all-targets -- -D warnings,
and the full matrix across Rust, Python, Go, and Node.js.
Files:
crates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rscrates/python/src/py_plugin.rscrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
crates/python/**/*.rs
📄 CodeRabbit inference engine (.agents/skills/test-python-binding/SKILL.md)
crates/python/**/*.rs: When Rust files change as part of Python work, runcargo fmt --all,just test-rust, andcargo clippy --workspace --all-targets -- -D warnings.
When the native Rust bridge changes, add and run the Rust crate tests fornemo-relay-python, includingcargo test -p nemo-relay-python.
Files:
crates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rscrates/python/src/py_plugin.rscrates/python/src/py_api/mod.rscrates/python/src/py_callable.rs
**/*.{rs,c,h}
📄 CodeRabbit inference engine (CONTRIBUTING.md)
Use the naming conventions appropriate to each language: Rust
snake_case, C FFI exports prefixednemo_relay_, GoPascalCase, Node.jscamelCase, Pythonsnake_case.
Files:
crates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rscrates/python/src/py_plugin.rscrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.{rs,toml}
📄 CodeRabbit inference engine (.agents/skills/prepare-pr/SKILL.md)
**/*.{rs,toml}: - [ ] Any Rust change ranjust test-rust
- Any Rust change ran
cargo fmt --all- Any Rust change ran
cargo clippy --workspace --all-targets -- -D warningsIf any Rust code changed, always run
just test-rust.
Files:
crates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rscrates/python/src/py_plugin.rscrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
**/*.{rs,h,c,cc,cpp}
📄 CodeRabbit inference engine (.agents/skills/validate-change/SKILL.md)
Use
test-ffi-surface.
Files:
crates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rscrates/python/src/py_plugin.rscrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
python/nemo_relay/{adaptive.py,plugin.py}
📄 CodeRabbit inference engine (.agents/skills/maintain-optimizer/SKILL.md)
Keep Python adaptive/plugin wrappers in
python/nemo_relay/adaptive.pyandpython/nemo_relay/plugin.pysynchronized with the shared adaptive/plugin boundary and lifecycle.
Files:
python/nemo_relay/plugin.py
crates/python/src/**/*.rs
📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
- Python native binding in
crates/python/src/py_api/mod.rs
Files:
crates/python/src/py_plugin.rscrates/python/src/py_api/mod.rscrates/python/src/py_callable.rs
crates/node/src/**/*.rs
📄 CodeRabbit inference engine (.agents/skills/add-binding-feature/SKILL.md)
- Node.js binding in
crates/node/src/api/mod.rs
Files:
crates/node/src/callable.rscrates/node/src/api/mod.rs
🧠 Learnings (4)
📚 Learning: 2026-05-07T18:04:44.387Z
Learnt from: mnajafian-nv
Repo: NVIDIA/NeMo-Flow PR: 67
File: integrations/openclaw/src/modules.ts:1-2
Timestamp: 2026-05-07T18:04:44.387Z
Learning: In NVIDIA/NeMo-Flow, TypeScript source files should use `//` line comments for SPDX headers (e.g., `// SPDX-FileCopyrightText: ...` and `// SPDX-License-Identifier: ...`) rather than C-style block comments (`/* ... */`). The repo’s copyright checker enforces this mapping, so `//` SPDX headers in `.ts` files should not be flagged as a style violation.
Applied to files:
crates/node/plugin.d.ts
📚 Learning: 2026-08-12T17:13:14.808Z
Learnt from: SandyChapman
Repo: NVIDIA/NeMo-Relay PR: 755
File: python/tests/integrations/langchain_tests/test_callbacks_scope_stack.py:185-185
Timestamp: 2026-08-12T17:13:14.808Z
Learning: In Python files, do not report Ruff UP017 findings unless pyproject.toml enables the UP rule set or the individual file explicitly enables UP017. The repository currently enables Ruff rule sets E, F, W, and I only.
Applied to files:
python/tests/test_event_metadata_injection.pypython/nemo_relay/event_metadata.pypython/nemo_relay/plugin.pypython/nemo_relay/scope_local.pypython/nemo_relay/__init__.py
📚 Learning: 2026-08-03T19:55:03.931Z
Learnt from: afourniernv
Repo: NVIDIA/NeMo-Relay PR: 558
File: crates/pii-redaction/src/rampart/mod.rs:265-274
Timestamp: 2026-08-03T19:55:03.931Z
Learning: In NeMo Relay first-party plugin registration helpers, treat the documented duplicate-registration `PluginError::RegistrationFailed` result from `register_plugin` as success when registration is intended to be idempotent. Do not locally reclassify this as `PluginError::Conflict`; changing the classification requires a core-wide review of the public API and FFI behavior.
Applied to files:
crates/python/tests/coverage/py_callable_coverage_tests.rscrates/python/tests/coverage/coverage_tests.rscrates/python/tests/coverage/py_plugin_coverage_tests.rscrates/python/src/py_plugin.rscrates/node/src/callable.rscrates/python/src/py_api/mod.rscrates/node/src/api/mod.rscrates/python/src/py_callable.rs
📚 Learning: 2026-07-28T23:57:11.641Z
Learnt from: willkill07
Repo: NVIDIA/NeMo-Relay PR: 570
File: crates/node/src/api/mod.rs:3265-3282
Timestamp: 2026-07-28T23:57:11.641Z
Learning: In the Node.js binding, `flushSubscribers()` is Promise-based/async and must be awaited. Any session-close or teardown path (e.g., the OpenClaw live smoke session-close flow) must await `flushSubscribers()` before continuing to live ATIF export assertions and before teardown, so queued subscriber delivery fully completes and tests/assertions observe the final state.
Applied to files:
crates/node/src/api/mod.rs
🪛 Ruff (0.16.1)
python/tests/test_event_metadata_injection.py
[warning] 42-42: Avoid specifying long messages outside the exception class
(TRY003)
[warning] 125-125: Missing return type annotation for private function validate
Add return type annotation: None
(ANN202)
python/nemo_relay/event_metadata.py
[warning] 36-36: __all__ is not sorted
Apply an isort-style sorting to __all__
(RUF022)
🔇 Additional comments (18)
python/nemo_relay/__init__.py (1)
14-14: LGTM!Also applies to: 203-213, 271-271, 617-617, 686-689
python/nemo_relay/event_metadata.py (1)
1-36: LGTM!python/nemo_relay/plugin.py (1)
24-24: LGTM!Also applies to: 121-126
python/nemo_relay/plugin.pyi (1)
11-11: LGTM!Also applies to: 54-56
docs/build-plugins/language-binding/register-behavior.mdx (1)
47-90: LGTM!crates/python/tests/coverage/coverage_tests.rs (1)
281-282: LGTM!Also applies to: 319-320
crates/python/tests/coverage/py_callable_coverage_tests.rs (1)
876-925: LGTM!crates/python/tests/coverage/py_plugin_coverage_tests.rs (1)
218-218: LGTM!Also applies to: 231-233, 278-284, 393-401
python/tests/test_event_metadata_injection.py (1)
1-165: LGTM!python/nemo_relay/__init__.pyi (1)
30-30: LGTM!Also applies to: 236-243
python/nemo_relay/_native.pyi (1)
61-67: LGTM!Also applies to: 1461-1461, 1470-1471, 1490-1493
python/nemo_relay/scope_local.py (1)
22-27: LGTM!Also applies to: 73-75, 127-141, 698-700
crates/node/src/api/mod.rs (1)
38-40: LGTM!Also applies to: 824-861, 905-911, 1613-1622, 3143-3172, 3715-3746
crates/node/src/callable.rs (1)
12-12: LGTM!Also applies to: 25-29, 623-657
crates/node/tests/event_metadata_injection_tests.mjs (1)
1-157: LGTM!crates/python/src/py_callable.rs (1)
23-23: LGTM!Also applies to: 33-38, 1931-2033
crates/python/src/py_api/mod.rs (1)
1318-1338: LGTM!Also applies to: 1827-1848, 2284-2285, 2384-2388
crates/python/src/py_plugin.rs (1)
16-23: LGTM!Also applies to: 43-44, 244-263
Signed-off-by: Eric Evans <194135482+ericevans-nv@users.noreply.github.com>
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One nit on type correctness/consistency
Co-authored-by: Will Killian <2007799+willkill07@users.noreply.github.com> Signed-off-by: Eric Evans II <194135482+ericevans-nv@users.noreply.github.com>
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…-injector-bindings Signed-off-by: Eric Evans <194135482+ericevans-nv@users.noreply.github.com>
Signed-off-by: Eric Evans <194135482+ericevans-nv@users.noreply.github.com>
2 participants
Overview
Relay's event metadata injector could not be registered directly through the public Python and Node.js APIs. This PR adds binding support for global, scope-local, and plugin-owned injector callbacks while keeping ordering, validation, merging, and failure handling in the existing core middleware.
Details
Local validation completed:
just test-python- 688 passedjust test-node- 391 passedcargo fmt --all -- --checkcargo clippy --workspace --all-targets -- -D warningsWhere should the reviewer start?
Start with
python/tests/test_event_metadata_injection.pyandcrates/node/tests/event_metadata_injection_tests.mjs. They show the public registration paths and expected behavior across global, scope-local, and plugin-owned callbacks.Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)
Summary by CodeRabbit
New Features
Documentation