hypotree: Skill for Claude Code

.agents/skills/seed-reader/SKILL.md

seed-reader is a skill for Claude Code, Codex from tygryso/hypotree. It costs 128 tokens per session (3,646 once invoked), scanned A, original, MIT.

A skill for turning evaluation-run logs into readable reports and interpreting their quality metrics and final GO, STOP, or ITERATE decision.

In plain words
What is it for?
Use it to list runs, render a report, inspect duplicates or conflicts, compare runs, diagnose data quality, and assess the formal gate decision.
Why use it?
It makes raw JSONL evaluation logs easier to review and helps explain why a test setup performed well or poorly.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is tygryso/hypotree's own configuration. It tells Claude Code and Codex how to work on hypotree itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything hypotree configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tygryso/hypotree. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/tygryso/hypotree/master/.agents/skills/seed-reader/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/tygryso/hypotree

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 seed-reader

README.md
[![agentmods](https://agentmods.dev/badge/skills/tygryso/hypotree/seed-reader/github.svg)](https://agentmods.dev/skills/tygryso/hypotree/seed-reader)
Your own site
<a href="https://agentmods.dev/skills/tygryso/hypotree/seed-reader"><img src="https://agentmods.dev/badge/skills/tygryso/hypotree/seed-reader/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for seed-reader

Your own site · 80×15
<a href="https://agentmods.dev/skills/tygryso/hypotree/seed-reader"><img src="https://agentmods.dev/badge/skills/tygryso/hypotree/seed-reader.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 128 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,646 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00128 $0.03646
Opus 5.5 $0.00051 $0.01458
Sonnet 5.5 $0.00026 $0.00729
Haiku 4.5 $0.00013 $0.00365

Measured 2mo ago against content hash 5b1a17abf3e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

seed-reader 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 2mo 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.

.agents/skills/seed-reader/SKILL.md · 329 lines

How it starts

The opening of the file, as written. The whole thing — 329 lines — stays where its author put it; the contents beside it link to each section on GitHub.

seed-reader — Evaluation Report Generation & Metric Interpretation

Render one evaluation run's JSONL logs as a self-contained markdown report, and understand every metric in it. Also covers the gate-scoring companion (analyse_gate) that emits the frozen GO / STOP / ITERATE decision.

When to Use

  • After an eval run completes and you need to read its results
  • When asked "how did the run go?" or "did hypotree win?"
  • When debugging why an arm performed a certain way (duplicates, conflicts, recovery, etc.)
  • When you need the formal gate decision (GO / STOP / ITERATE)
  • When comparing two runs or diagnosing data-quality issues

How to List Available Run-Ids

Every run's logs live in eval/runs/<run-id>/. The directory names are the run-ids.

# List all run-ids (directories that contain episode logs)
ls eval/runs/

# Check which runs have completed (have a gate_decision.json)
ls eval/runs/*/gate_decision.json 2>/dev/null

# Check a specific run's contents
ls eval/runs/<run-id>/

Run-ids are validated: 1–64 chars of [A-Za-z0-9._-]. Typical convention: YYYY-MM-DD<x> (e.g., 2026-07-28a).

Step 1 — Generate the Report

# Render to stdout
uv run python -m eval.seed_reader --run-id <RUN_ID>

# Write to a file (recommended — the report is long)
uv run python -m eval.seed_reader --run-id <RUN_ID> --output eval/runs/<RUN_ID>/REPORT.md

# Non-default eval directory
uv run python -m eval.seed_reader --run-id <RUN_ID> --eval-dir /path/to/eval/

--run-id is mandatory. Reports are only comparable within a run — mixing two runs' logs would silently invalidate every aggregate. The tool enforces this by checking that each log's own run_id field matches the directory.

Step 2 — Score the Gate Decision

# Emits JSON: {"decision": "GO"|"STOP"|"ITERATE", "criteria": {...}, ...}
uv run python -m eval.analyse_gate eval/ --run-id <RUN_ID>

# Save alongside the report
uv run python -m eval.analyse_gate eval/ --run-id <RUN_ID> | tee eval/runs/<RUN_ID>/gate_decision.json

Read the full file on GitHub · 329 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. 2mo ago First seen · 329 lines · 128 tokens per session scan A 5b1a17abf3e5

Subscribe to this mod's changes

seed-reader is a skill published in the GitHub repository tygryso/hypotree (12 stars, last pushed 2mo ago), licensed MIT. It adds 128 tokens to every session and 3,646 once invoked, about $0.0005 per session on Opus 5.5. 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.

Related

seed-reader compared with skills from other repositories

seed-reader next to 6 skills from other repositories
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seed-readertygryso/hypotreeSkill122mo agoMITA128Claude Code, Codex
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statsShweta-Mishra-ai/tokenmizerSkill352d agoMITA51Claude Code
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hypothesis-generationPracticalSwan/agent-skillsSkill2418d agoMITA58Codex