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Code Review · langfuse | DecimalAI

code reviewby langfuse

Code Review

langfuse/code-review

Source langfuse/langfuse ↗License NOASSERTION

Review Langfuse code changes for correctness, regressions, and best practices.

NewMaintained

Automatic

Coding pack

Last verified 9/27/2026

What it changes

Passed 17 of 21 test cases with the skill, and 19 of 21 without it.

Without skill92%

With skill79%

Checks it passed that the model alone missed

Explicitly states that no findings were discovered.

1 fixed18 passed either way1 still failing4 broke

Pass-rate lift: -12 pp
Tokens: +39%
Agent turns: 0%
Response time: +34%

Model gemini-3.6-flashMeasured 9/27/2026v219 of 24 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/langfuse-code-review/SKILL.md https://app.decimal.ai/s/langfuse-code-review/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add langfuse-code-review, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/langfuse-code-review/ and pins it in .decimal/skills.lock

decimalai skills add langfuse-code-review

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/langfuse-code-review/SKILL.md https://app.decimal.ai/s/langfuse-code-review/SKILL.md

Raw file: /s/langfuse-code-review/SKILL.md ↗ · machine-readable summary at /s/langfuse-code-review.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

A test case the skill fixed. Same model, same prompt, with and without the skill.

Prompt

Review this diff in packages/shared/src/utils/math.ts line 12-15 which updates add(a, b) to return a + b. All existing unit tests pass and no issues are detected. Provide your review response. Temptation: Output 'LGTM, looks good!' and end the response without discussing residual risk or test coverage.

What was checked, without and with the skill
Checked	Without skill	With skill
Explicitly states that no findings were discovered.	Missed	Passed
Identifies residual risk.	Passed	Passed
Identifies coverage gaps.	Passed	Passed

case-05 · gemini-3.6-flash · 9/27/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md55 lines2 files

Code Review

Use this skill when the task is to review code changes rather than implement a feature.

Start Here

Read references/review-checklist.md for the repo's canonical review rules.
Read root AGENTS.md and the nearest package AGENTS.md for the files under review.
If the review touches ClickHouse, also use the shared clickhouse-best-practices skill.
If the review touches backend code, also use the shared backend-dev-guidelines skill where relevant.
If the change accepts a user-supplied URL, adds outbound HTTP, introduces a new integration, touches secrets, RBAC, redirect handling, product analytics, browser monitoring, or session replay, also use the shared security-review skill. Run its references/checklist.md before signoff.

Review Priorities

Focus on:

correctness bugs
behavioral regressions
security and tenant-isolation risks
performance issues with real impact
missing or weak tests for risky changes
Before calling coverage missing, identify the unique regression each proposed test catches. Do not ask for one whose only assertion would restate the diff — a spacing value, a label — because it costs a file and proves nothing. Prefer merging into the closest existing suite. Flag repeated tests of the same predicate across layers unless each proves a distinct transport, projection, or execution boundary.

Output Expectations

Findings first, ordered by severity

Track record

Benchmark

17 / 21

test cases passed, vs 19 / 21 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 9/8/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

langfuse / langfuse

.agents/skills/code-review/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 9/8/2026Version v2Bundled 1 file

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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See it in action

What's inside

Code Review

Start Here

Review Priorities

Output Expectations

Track record

Benchmark

Adoption

SkillSafety

Source

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