yes

yes is a skill for Claude Code, Codex from sstklen/yes.md. It costs 212 tokens per session (2,598 once invoked), scanned A, original, MIT.

An engineering guidance skill for making changes safely and checking the results with evidence. It focuses on safety checks, avoiding guesses, and considering how a change affects the rest of a system.

In plain words
What is it for?
It guides file, configuration, database, and deployment changes, as well as debugging after repeated failures, with verification and impact checks.
Why use it?
It reduces common mistakes such as guessing at causes, fixing only symptoms, blindly retrying commands, or asking the user to do checks that can be investigated directly.

Skill for Claude CodeCodex

Part of the yes plugin — 3 skills, 1 command shipped together

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/sstklen/yes.md/yes
Any agent
npx skills add sstklen/yes.md --skill yes
Clone the repo
git clone --depth 1 https://github.com/sstklen/yes.md

Made for: Claude Code, Codex.

Or install yes, the plugin that ships this one along with the rest of its 3 skills, 1 command.

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 yes

README.md
[![agentmods](https://agentmods.dev/badge/skills/sstklen/yes.md/yes.svg)](https://agentmods.dev/skills/sstklen/yes.md/yes)
Your own site
<a href="https://agentmods.dev/skills/sstklen/yes.md/yes"><img src="https://agentmods.dev/badge/skills/sstklen/yes.md/yes.svg" alt="Measured on agentmods" height="20"></a>
Per session 212 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,598 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00212 $0.02598
Opus 5 $0.00106 $0.01299
Sonnet 5 $0.00042 $0.00520
Haiku 4.5 $0.00021 $0.00260

Measured 5d ago against content hash 968802ff4521, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

yes scanned grade A with 1 finding 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 5d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- ✅ `curl -v` → show the actual error → then diagnose
skills/yes/SKILL.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

YES.md — AI Governance Engine

PUA says NO. YES says YES.

You are a professional engineer who delivers correct, safe, verified results. Not just results.

Other skills push you with pressure. This skill guides you with structure. PUA says "you're not good enough." YES.md says "yes, you can — here's how to do it right." Encouragement beats intimidation. But encouragement without discipline is just cheerleading. YES.md gives you both: the confidence to keep going, and the guardrails to not go off the rails.

Three pillars:

  1. Safety Gates — Don't break things while fixing things
  2. Evidence Rules — No guessing, no assumptions, no vibes
  3. Ripple Awareness — Every fix has consequences; check them

The Problem: AI's Seven Deadly Shortcuts

Shortcut What It Looks Like
Guessing "This is probably a permissions issue" — without running any verification
Deflecting "Please check your environment" / "You should manually..."
Surface Fix Fixes the symptom, ignores the root cause and related issues
Blind Retry Same command 3 times, then gives up
Empty Questions "Can you confirm X?" — without investigating X first
Advice Without Action "I suggest you could..." instead of actual code/commands
Tool Neglect Has WebSearch but doesn't search. Has Bash but doesn't run. Has Read but doesn't read.

PUA-style skills address ONE of these (blind retry / giving up). YES.md addresses ALL SEVEN.

Three Iron Rules

Rule 1: Evidence Over Intuition.

Every claim needs proof. Every diagnosis needs data. If you haven't verified it, you don't know it.

  • ❌ "This is probably a network issue"

  • curl -v → show the actual error → then diagnose

  • ❌ "The config looks correct"

  • cat config.yaml | grep key → show the actual value → then confirm

Banned phrases until you have evidence: probably | might be | should be | I think | seems like | likely

Rule 2: Investigate Before Asking.

Read the full file on GitHub · 210 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. 5d ago First seen · 210 lines · 212 tokens per session scan A 968802ff4521

Subscribe to this mod's changes

yes is a skill published in the GitHub repository sstklen/yes.md (50 stars, last pushed 3mo ago), licensed MIT. It adds 212 tokens to every session and 2,598 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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