SutroYaro: Skill for Claude Code

.claude/skills/sutro-context/SKILL.md

sutro-context is a skill for Claude Code from cybertronai/SutroYaro. It costs 34 tokens per session (616 once invoked), scanned A, original, Unlicense.

A project-context checklist for research, experiments, and pull-request reviews. It loads project notes, open questions, experiment rules, recent Telegram discussions, and open GitHub work.

In plain words
What is it for?
Use it before research, experiments, or code reviews to inspect the project's guidance, discoveries, activity, and open pull requests or issues.
Why use it?
It helps an agent understand the project's current state before acting, reducing repeated work and decisions that conflict with existing findings or constraints.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions CLAUDE.md.

This is cybertronai/SutroYaro's own configuration. It tells Claude Code how to work on SutroYaro 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 SutroYaro configures →

Reuse

Borrowing it

Nothing to install: this file belongs to cybertronai/SutroYaro. 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/cybertronai/SutroYaro/main/.claude/skills/sutro-context/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/cybertronai/SutroYaro

Made for: Claude Code.

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 sutro-context

README.md
[![agentmods](https://agentmods.dev/badge/skills/cybertronai/sutroyaro/sutro-context.svg)](https://agentmods.dev/skills/cybertronai/sutroyaro/sutro-context)
Your own site
<a href="https://agentmods.dev/skills/cybertronai/sutroyaro/sutro-context"><img src="https://agentmods.dev/badge/skills/cybertronai/sutroyaro/sutro-context.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 616 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.
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 $0.00034 $0.00616
Opus 5 $0.00017 $0.00308
Sonnet 5 $0.00007 $0.00123
Haiku 4.5 $0.00003 $0.00062

Measured 8d ago against content hash b49e40ee58de, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

sutro-context 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 8d 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.

.claude/skills/sutro-context/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sutro Research Context

Load this before doing any research work, running experiments, or reviewing PRs.

Step 1: Read core files

Read these in order. Stop and report if anything is unexpected.

  1. CLAUDE.md -- project context, current best methods, constraints
  2. DISCOVERIES.md -- what's proven, what failed, open questions (bottom of file)
  3. AGENT.md -- machine-executable experiment loop (if running autonomous)
  4. LAB.md -- experiment protocol, rules (especially rule #9: metric isolation)

Step 2: Check recent activity

Read the last 10 messages from priority Telegram topics:

import json
for f in ['chat-yad.json', 'chat-yaroslav.json', 'challenge-1-sparse-parity.json']:
    path = f'src/sparse_parity/telegram_sync/{f}'
    try:
        msgs = json.load(open(path))
        print(f'\n=== {f} (last 3) ===')
        for m in msgs[:3]:
            print(f"  [{m['date'][:10]}] {m['sender']}: {m['text'][:150]}")
    except FileNotFoundError:
        print(f'{f} not found -- run: bun run sync_telegram.ts')

Check GitHub for open work:

gh pr list --repo cybertronai/SutroYaro --state open
gh issue list --repo cybertronai/SutroYaro --state open

Step 3: Know the current state

Fact Value
Best method GF(2) Gaussian elimination, 509us, ARD ~500
Best energy proxy DMC (Data Movement Complexity, Ding et al.)
Experiments done 33+ (see research/log.jsonl)
Open questions Bottom of DISCOVERIES.md (Q7, Q11-Q13 still open)
Next milestone Energy-efficient nanoGPT training ("final exam")
Meeting cadence Mondays 18:00 at South Park Commons

Step 4: Before writing code

  • Check research/search_space.yaml for allowed parameter ranges
  • Check research/questions.yaml for the dependency graph of open questions
  • Run checks/env_check.py to verify environment
  • Run checks/baseline_check.py if baselines may differ on your machine

For contributors using other tools

This context applies regardless of which AI tool you use. The key files are plain markdown and YAML. Read them before starting work. The experiment protocol in LAB.md and AGENT.md defines the loop: hypothesis, code, run, measure, record.

Read the full file on GitHub · 64 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 64 lines · 34 tokens per session scan A b49e40ee58de

Subscribe to this mod's changes

sutro-context is a skill published in the GitHub repository cybertronai/SutroYaro (16 stars, last pushed 3mo ago), licensed Unlicense. It adds 34 tokens to every session and 616 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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