eval-fetch

eval-fetch is a skill for Claude Code, Codex from Galileo-Agent-Labs/eval-engineer. It costs 40 tokens per session (802 once invoked), scanned A, original, MIT.

A workflow for fetching evidence from the Galileo evaluation platform and saving it locally. Galileo stores traces, sessions, experiments, and log streams for reviewing AI applications.

In plain words
What is it for?
It parses Galileo links, fetches the requested traces or experiment data, preserves source metadata, and reports missing information or access blockers.
Why use it?
It turns console links or IDs into organized debugging evidence without mixing up artifact details or exposing secret values.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/galileo-agent-labs/eval-engineer/eval-fetch
Any agent
npx skills add Galileo-Agent-Labs/eval-engineer --skill eval-fetch
Clone the repo
git clone --depth 1 https://github.com/Galileo-Agent-Labs/eval-engineer

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for eval-fetch

README.md
[![agentmods](https://agentmods.dev/badge/skills/galileo-agent-labs/eval-engineer/eval-fetch.svg)](https://agentmods.dev/skills/galileo-agent-labs/eval-engineer/eval-fetch)
Your own site
<a href="https://agentmods.dev/skills/galileo-agent-labs/eval-engineer/eval-fetch"><img src="https://agentmods.dev/badge/skills/galileo-agent-labs/eval-engineer/eval-fetch.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 802 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.00802
Opus 5 $0.00020 $0.00401
Sonnet 5 $0.00008 $0.00160
Haiku 4.5 $0.00004 $0.00080

Measured 6d ago against content hash 6f3fe1ebd3dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

eval-fetch scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/eval-fetch/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Eval Fetch

Use this skill to turn messy Galileo console links and IDs into local evidence. The goal is a grounded debug packet, not a diagnosis.

Do not print secret values. Report only credential variable names, whether expected variables are present, and the exact fetch blocker.

First Parse The Input

Use skills/eval-engineer/scripts/parse_galileo_url.py when the user provides a Galileo URL. Follow skills/eval-engineer/references/galileo-url-intake.md for artifact-specific behavior.

Preserve source metadata in the packet:

  • source.console_url
  • source.console_host
  • source.workspace_slug
  • source.project_id
  • artifact IDs such as log_stream_id, experiment_id, session_id, or trace_id

Ask Only For Missing Information

  • project URL: ask for log stream, experiment, session, trace, time window, or failure metric.
  • Experiments list URL: ask for latest experiment, specific experiment, failing experiment, or comparison pair.
  • Log stream URL: ask for latest N traces, failed traces, time window, or aggregate metrics if the user did not specify.
  • Log stream aggregate metrics: use skills/eval-engineer/scripts/fetch_log_stream_packet.py with --url or --project-id plus --log-stream-id. This fetches traces, spans, sessions, aggregates numeric scorer metrics into .galileo/current/debug-packet.json, and reports metric_fetch_status.
  • Trace/session URL: fetch that artifact and ask whether to compare against a baseline only if needed.
  • If the URL parser returns fetch_ready: true, say the Galileo artifact is resolved. If a slice is still needed, ask which slice to fetch; do not label the URL as not fetch-ready.
  • If the current repo has no fetch helper, SDK method, API route, or saved packet capable of fetching the requested aggregate, say fetch implementation gap. Do not imply that scorer aggregates, trace lists, or metric distributions were fetched when the command only parsed the URL.
  • If fetch_log_stream_packet.py writes a packet with metric_fetch_status: missing_metric_results, say the fetch worked but Galileo did not return scored metrics for the requested slice.

Read the full file on GitHub · 82 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 82 lines · 40 tokens per session scan A 6f3fe1ebd3dc

Subscribe to this mod's changes

eval-fetch is a skill published in the GitHub repository Galileo-Agent-Labs/eval-engineer (41 stars, last pushed 25d ago), licensed MIT. It adds 40 tokens to every session and 802 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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