Braintrust Analyze

Community

vibeeval

braintrust-analyze

Analyze Claude Code sessions via Braintrust

Overview

Publisher	vibeeval
Repository	`vibecosystem`
Skill name	`braintrust-analyze`
Stars	541
Forks	44
Bundled files	Instructions only
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by vibeeval on GitHub. Read the source before you install it.

Installation

Install the Braintrust Analyze AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/vibeeval/vibecosystem/tree/main/skills/braintrust-analyze
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/vibeeval/vibecosystem.git /tmp/vibecosystem
mkdir -p .claude/skills
cp -r /tmp/vibecosystem/skills/braintrust-analyze .claude/skills/braintrust-analyze

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Braintrust Analyze in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Braintrust Analyze on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Braintrust Analyze is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Braintrust Analysis

Analyze your Claude Code sessions for patterns, issues, and insights using Braintrust tracing data.

When to Use

After completing a complex task (retrospective)
When debugging why something failed
Weekly review of productivity patterns
Finding opportunities to create new skills
Understanding token usage trends

Commands

Run from the project directory:

bash
# Analyze last session - summary with tool/agent/skill breakdown
uv run python -m runtime.harness scripts/braintrust_analyze.py --last-session

# List recent sessions
uv run python -m runtime.harness scripts/braintrust_analyze.py --sessions 5

# Agent usage statistics (last 7 days)
uv run python -m runtime.harness scripts/braintrust_analyze.py --agent-stats

# Skill usage statistics (last 7 days)
uv run python -m runtime.harness scripts/braintrust_analyze.py --skill-stats

# Detect loops - find repeated tool patterns (>5 same tool calls)
uv run python -m runtime.harness scripts/braintrust_analyze.py --detect-loops

# Replay specific session - show full sequence of actions
uv run python -m runtime.harness scripts/braintrust_analyze.py --replay <session-id>

# Weekly summary - daily activity breakdown
uv run python -m runtime.harness scripts/braintrust_analyze.py --weekly-summary

# Token trends - usage over time
uv run python -m runtime.harness scripts/braintrust_analyze.py --token-trends

Options

--project NAME - Braintrust project name (default: agentica)

What You'll Learn

Session Analysis

Tool usage breakdown
Agent spawns (plan-agent, debug-agent, etc.)
Skill activations (/commit, /research, etc.)
Token consumption estimates

Loop Detection

Find sessions where the same tool was called repeatedly, which may indicate:

Stuck in a search loop
Inefficient approach
Opportunity for better tooling

Usage Patterns

Which agents you use most
Which skills get activated
Daily/weekly activity trends

Examples

Quick Retrospective

bash
# What happened in my last session?
uv run python -m runtime.harness scripts/braintrust_analyze.py --last-session

Output:


## Session Analysis
**ID:** `92940b91...`
**Started:** 2025-12-24T01:31:05Z
**Spans:** 14

### Tool Usage
- Read: 4
- Bash: 2
- Edit: 2
...

Find Loops

bash
uv run python -m runtime.harness scripts/braintrust_analyze.py --detect-loops

Weekly Review

bash
uv run python -m runtime.harness scripts/braintrust_analyze.py --weekly-summary

Requirements

BRAINTRUST_API_KEY in ~/.claude/.env or project .env
Braintrust tracing enabled (via braintrust-claude-plugin)

Frequently asked questions

What does the Braintrust Analyze AI skill do?

Analyze Claude Code sessions via Braintrust

Why use Braintrust Analyze on TypingMind?

Because you install it once and use it with any model. Braintrust Analyze is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Braintrust Analyze in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/vibeeval/vibecosystem/tree/main/skills/braintrust-analyze. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Braintrust Analyze?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Braintrust Analyze?

As many as you like. As long as a model supports skills, you can use Braintrust Analyze with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Braintrust Analyze AI skill free?

Yes. It is published on GitHub by vibeeval under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Braintrust Analysis

When to Use

Commands

Options

What You'll Learn

Session Analysis

Loop Detection

Usage Patterns

Examples

Quick Retrospective

Find Loops

Weekly Review

Requirements

Frequently asked questions

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