datasets
Training and evaluation data, with the modality, task and licence stated up front. Listed live from the Hugging Face Hub.
Fable-5-tracesA simple dataset of the raw Fable 5 Claude session logs we could get our hands on before it was taken away (no clue if it's coming back).
The raw trace files live in sessions/*.jsonl. Cache files, paste-cache files, shell history, and merged COT training exports are intentionally omitted so Hugging Face Datasets can load the repo through the agent-traces path.
A pretty viewer for dataset:… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/Fable-5-traces.hf-coding-tools-traces
HuggingFace AI Coding Tools — Agent Traces
This dataset rehydrates the benchmark results from
davidkling/hf-coding-tools-dashboard
into the JSONL session format consumed by the
Hugging Face Agent Trace Viewer.
What's inside
32 sessions, one per (tool, model, effort, thinking) configuration
9,130 query → response turns total (≈18,260 events)
Tools covered: claude_code, codex, copilot, cursor
Models: claude-opus-4-6, claude-sonnet-4-6, claude-sonnet-4.6, composer-2… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/hf-coding-tools-traces.react-code-instructions
React Code Instructions
Popular Queries
Number of instructions by Model
Unnested Messages
Instructions Added Per Day
Dataset of Claude Artifact esque React Apps generated by Llama 3.1 70B, Llama 3.1 405B, and Deepseek Chat V3.
Examples
Virtual Fitness Trainer Website
LinkedIn Clone
iPhone Calculator
Chipotle Waitlist
Apple Store
factory-traces
agent-sessions-list
Agent Traces
agent-sessions-list is a small index of real agent session trace files from Claude Code, Codex, Hermes Agent, Factory/Droid, and Pi.
How to find your Agent Traces
Agent
Typical local session directory
Claude Code
~/.claude/projects
Codex
~/.codex/sessions
Codex archive
~/.codex/archived_sessions
Hermes Agent
~/.hermes/state.db; export with hermes sessions export <output>.jsonl
Factory/Droid
~/.factory/sessions
Pi… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/agent-sessions-list.hermes-agent-trace-samples-2026-06-05
Hermes Agent Raw Session Samples
Five public-safe raw Hermes Agent session exports generated on 2026-06-05 with the Hermes CLI using Hugging Face Inference Providers.
Each file in sessions/ is the exact single-session output from:
hermes sessions export sessions/<session_id>.jsonl --session-id <session_id>
No derived tables, flattened rows, SQLite database, or formatted JSON copies are included.
pi-diff-review
Coding agent session traces for badlogicgames/pi-diff-review
This dataset contains redacted coding agent session traces collected while working on https://github.com/badlogic/pi-diff-review.git. The traces were exported with pi-share-hf from a local pi workspace and filtered to keep only sessions that passed deterministic redaction and LLM review.
Data description
Each sessions/*.jsonl file is a redacted pi session. Sessions are stored as JSON Lines files where… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/pi-diff-review.codex-sessions
Codex Sessions
Archive of raw OpenAI Codex CLI session files, plus a derived one-row-per-session view.
Files
rollout-*.jsonl: untouched raw Codex session files stored for fidelity
sessions.jsonl: derived file where 1 row = 1 session
Derived Sessions Format
sessions.jsonl contains one JSON object per session with this shape:
{
"session_id": "019d2fac-0b38-70f0-baff-a394265d8291",
"file_name":… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/codex-sessions.model-toolcall-research
Model Toolcall Research
This dataset stores newline-delimited agent traces from bounded research runs on model repository tool-schema support.
The Dataset Viewer is configured to index only .jsonl files:
toolcall_traces loads trace files under traces/**/*.jsonl.
research_session loads top-level provenance/session traces from *.jsonl.
The archive/ directory preserves the earlier .trace.json uploads for reference, but those files are newline-delimited JSON streams rather than… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/model-toolcall-research.fin-cfa-graphgen
Fin-CFA-GraphGen: 785K Knowledge-Guided Financial QA Examples
Fin-CFA-GraphGen is a large-scale English dataset for financial instruction tuning, financial question answering, and domain-specific language-model post-training. It contains 785,149 synthetic question–answer examples generated from CFA curriculum and exam-preparation books with the GraphGen knowledge-driven data-generation method.
The dataset and its role in the post-training pipeline are described in Data-Centric… See the full description on the dataset page: https://huggingface.co/datasets/whoisjiji/fin-cfa-graphgen.web-fetch-harness-traces
Native web fetch harness traces
Separate, lightly sanitized native JSONL traces comparing URL-fetch behavior in Claude Code and Codex CLI against:
https://huggingface.co/datasets/nyu-mll/glue
Captured on 2026-09-15. No shell HTTP client, browser automation, or MCP fetcher was used.
Files
data/claude-code.jsonl: Claude Code's stream-json events.
data/codex.jsonl: Codex's persisted native rollout JSONL.
Both traces are exposed together in the default subset and… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/web-fetch-harness-traces.hermes-agent-traces
Hermes Agent Traces
Bulk JSONL export produced by hermes sessions export sessions.jsonl.
claude-sessions
Claude Sessions
Archive of raw Claude Code session files, plus a derived one-row-per-session view.
Files
*.jsonl: untouched raw session files stored for fidelity
sessions.jsonl: derived file where 1 row = 1 session
verizon-codex-trace
Verizon Codex Trace
A sanitized Codex session trace of GPT-5.5/Codex working through a Verizon billing and trade-in support flow.
The trace includes the original JSONL session structure, assistant/user turns, tool calls, shell output, selected Computer Use browser screenshots, and the Verizon live-chat/bill context needed to understand the agent's work.
What's included
One saved Codex session JSONL under sessions/
Assistant messages, user messages, tool calls… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/verizon-codex-trace.gemma-vs-qwen-traces-6ee227openclaw-testus-ev-charging-locations
United States Electric Vehicle Charging Locations
Capybara-Converted
This is the Official Capybara dataset. Over 10,000 multi-turn examples.
Capybara is the culmination of insights derived from synthesis techniques like Evol-instruct (used for WizardLM), Alpaca, Orca, Vicuna, Lamini, FLASK and others.
The single-turn seeds used to intiate the Amplify-Instruct synthesis of conversations are mostly based on datasets that i've personally vetted extensively, and are often highly regarded for their diversity and demonstration of logical robustness and… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/Capybara-Converted.swti-stem-20kCFA_Judgement_Corpus_97-22glaive-function-calling-v2-sharegptllama-3.1-awesome-chatgpt-prompts
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Demo [optional]: [More Information Needed]… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/llama-3.1-awesome-chatgpt-prompts.links-between-papers-and-codeopenhermes-2kDevSpecCode
DevSpecCode
Synthetic Code Dataset with instructions requiring multiple complex requirements, limitations, and instructions.
Example Instruction
Please create a small function in Go that meets the following requirements:
1. Write a Go function named `parallelSum` that accepts a slice of integers and returns the sum of those integers. However, the sum must be calculated in parallel using Go routines, by dividing the slice into four roughly equal parts and summing each… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/DevSpecCode.gpt-4o-mini-vision-traces
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Curated by: [More Information Needed]
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Language(s) (NLP): [More Information Needed]
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Demo [optional]: [More Information Needed]… See the full description on the dataset page: https://huggingface.co/datasets/cfahlgren1/gpt-4o-mini-vision-traces.papers-with-abstractswiki_sql_pg_convertedtracescustom-html-gallery