Individual skill
langfuse-cost-forensics
Audit Langfuse recorded-cost observations for missing usage, unavailable cost, cursor gaps and scope mismatches. Separate explicit zero from unknown and partial subtotals from complete retrieved sets. Use when reviewing this evidence. Trigger with "Langfuse spend looks wrong", "missing generation cost" or "does this first page prove our total?".
skills/.curated/langfuse-cost-forensics/SKILL.md
Source commit 0500b275e963c027f6b410e8c49c0446945c574e
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- No
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Not checked yet
- Last checked
- Nov 12, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 2,916
- Repository last updated
- Nov 12, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai Repository topic
- automation Repository topic
- claude-code Repository topic
- devops Repository topic
- mcp Repository topic
- ai-agents Repository topic
- anthropic Repository topic
- claude-code-plugins Repository topic
- developer-tools Repository topic
- llm Repository topic
- langfuse Declared skill tag
- cost Declared skill tag
- usage Declared skill tag
- coverage Declared skill tag
- forensics Declared skill tag
- security Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
SKILL.mdcore · 5,741 bytesSKILL.mdcore · 5,741 bytesSKILL.mdcore · 5,741 bytesSKILL.mdcore · 5,741 byteseval-spec.yamlasset · 1,911 bytesreferences/receipt-contract.mddoc · 7,667 bytesscripts/inspect-costs.pyruns · 13,783 bytes
Read excerpt
# Langfuse Cost Forensics
## Overview
Explain the recorded cost supported by a supplied observation set and what
prevents a complete-set subtotal. Missing cost is not zero, a first page is not
a project total, and recorded USD cost is not a verified provider invoice.
This operator diagnoses evidence; it does not route models or promise savings.
## Prerequisites
- The disputed cost claim, reviewed project and exact absolute selection window.
- Native Observations API v2 pages with actual request selectors, usage fields,
cursor metadata and collection times.