[gauravkr2209]

Problem
The LanceDB instrumentation reads request data only from kwargs. LanceDB documents table.add(data), table.search(query) and table.delete(where) as positional calls. With positional arguments the span loses its data attributes (e.g. tbl.add(rows) produced a span with only db.system/db.operation, missing db.milvus.insert.data_count).

Fix
Bind the call's args and kwargs to the wrapped method's signature (inspect.signature(...).bind_partial), flatten any **kwargs, and fall back to kwargs if binding fails, so behaviour never gets worse. Only the attribute-reading path changes; the wrapped call itself is untouched.

Tests
Added tests/test_positional_args.py (3 tests, real local LanceDB in a tmp dir, no network). They fail on main and pass with this change. Full LanceDB suite with the fix: 6 passed. ruff check passes. Note: tests/test_query.py::test_lancedb_delete fails on pristine main only with the newest lancedb; with the repo-pinned lancedb 0.26.1 it passes — pre-existing, unrelated to this PR.

Before / after (reproduction with a real local LanceDB, tbl.add(ROWS) where ROWS has 2 rows):
Before: span attributes {'db.system': 'lancedb', 'db.operation': 'add'} — no data count.
After: same span plus 'db.milvus.insert.data_count': 2, identical to the keyword call tbl.add(data=ROWS). (The db.milvus.* / db.chroma.* attribute names are pre-existing semantic-convention reuse in this package, unchanged here.)

Summary by CodeRabbit

• Bug Fixes
  • LanceDB telemetry now records arguments supplied positionally for add, search, and delete operations, improving the details shown in their spans.

[coderabbitai]

Walkthrough

LanceDB instrumentation now resolves positional and keyword arguments before setting span attributes for add, search, and delete. Regression tests check the span attributes produced by positional calls.

Changes: LanceDB argument attributes

Layer / File(s)	Summary
Resolve arguments for span attributes packages/opentelemetry-instrumentation-lancedb/opentelemetry/instrumentation/lancedb/utils.py, packages/opentelemetry-instrumentation-lancedb/opentelemetry/instrumentation/lancedb/wrapper.py, packages/opentelemetry-instrumentation-lancedb/tests/test_positional_args.py	get_call_arguments binds supplied arguments to parameter names and falls back to the original keyword arguments if inspection or binding fails. _wrap passes the resolved arguments to the add, search, and delete attribute setters. Tests check span attributes for positional calls.

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Possibly related PRs

• traceloop/openllmetry#4694: Applies positional and keyword argument binding to Voyage AI instrumentation for span attributes.

Suggested reviewers: benedikt-wolf

Merge Risk: Minimal · up to f57b6

No actionable merge-blocking risk was identified in the positional-argument instrumentation change.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documenta…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title names the lancedb instrumentation fix: span attributes are now captured for arguments passed positionally. The raw summary confirms the change: utils.py adds get_call_arguments to bind posit…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Title check

Explanation

The title names the lancedb instrumentation fix: span attributes are now captured for arguments passed positionally. The raw summary confirms the change: utils.py adds get_call_arguments to bind positional and keyword arguments to the signature, and wrapper.py passes the resolved arguments to the add, search, and delete setters. Regression tests cover positional calls to add, search, and delete. The title is specific, follows the conventional commit style, and matches the main change.

Full details: Docstring Coverage

Explanation

Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 3 functions across 3 files.

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

Finishing Touches

Generate unit tests (beta)

• Create a new PR

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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[coderabbitai]

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Failed pre-merge checks:
- Docstring Coverage:
Write docstrings for the functions missing them to satisfy the coverage
threshold.

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Commits

Reviewing files that changed from the base of the PR and between 4a294cd and f57b6e8.

Files selected for processing: 3

• packages/opentelemetry-instrumentation-lancedb/opentelemetry/instrumentation/lancedb/utils.py
• packages/opentelemetry-instrumentation-lancedb/opentelemetry/instrumentation/lancedb/wrapper.py
• packages/opentelemetry-instrumentation-lancedb/tests/test_positional_args.py

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