verification-baseline

verification-baseline is a skill for Claude Code, Codex from microsoft/AutoSaddler. It costs 28 tokens per session (450 once invoked), scanned A, original, MIT.

A verification checklist for reviewing a proposed code change before it is returned or integrated.

In plain words
What is it for?
Use it after making changes to inspect the full diff, trace affected callers, run suitable checks, and confirm the real integration path works.
Why use it?
It catches unintended edits, broken dependencies, syntax problems, integration failures, and mistakes in prompts, templates, hooks, or schemas.

Skill for Claude CodeCodex

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/microsoft/autosaddler/verification-baseline
Any agent
npx skills add microsoft/AutoSaddler --skill verification-baseline
Clone the repo
git clone --depth 1 https://github.com/microsoft/AutoSaddler

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 verification-baseline

README.md
[![agentmods](https://agentmods.dev/badge/skills/microsoft/autosaddler/verification-baseline.svg)](https://agentmods.dev/skills/microsoft/autosaddler/verification-baseline)
Your own site
<a href="https://agentmods.dev/skills/microsoft/autosaddler/verification-baseline"><img src="https://agentmods.dev/badge/skills/microsoft/autosaddler/verification-baseline.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 450 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 $0.00028 $0.00450
Opus 5 $0.00014 $0.00225
Sonnet 5 $0.00006 $0.00090
Haiku 4.5 $0.00003 $0.00045

Measured 4d ago against content hash faef9229ba28, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verification-baseline 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 4d 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.

src/autosaddler/v2/prompting/methodology/skills/verification-baseline/SKILL.md · 47 lines

What it actually says

Verification Baseline (Core)

Purpose (Core)

Verification asks whether the complete candidate is internally consistent, loadable, within scope, and capable of producing the intended effect without obvious collateral damage. It is not permission to weaken the intended change until a check passes.

Procedure (Core)

Before returning a change:

  1. Review the complete diff or update set. Remove unintended edits, debug text, stale artifacts, no-op churn, and unrelated formatting.
  2. Confirm every changed unit is inside the declared mutation scope, every declared unit actually changed, and every protected input is untouched.
  3. Trace dependencies and callers of shared surfaces. Preserve registration, imports, defaults, signatures, schemas, side effects, and companion files unless the diagnosis requires a coordinated change.
  4. Validate syntax and structure with the plugin's available checks. Confirm the candidate loads through its real integration path, not only an isolated parser.
  5. Inspect the final rendered or agent-visible form of prompts, descriptions, templates, hooks, and schemas. Check placeholders, escaping, formatting, examples, parameter names, and runtime behavior for consistency.
  6. Exercise empty inputs, boundary values, error paths, and representative existing callers when they can reach the changed surface.
  7. Recheck behavior that already passed and could be affected. A targeted fix should not silently broaden, suppress, or reorder unrelated behavior.
  8. Confirm the mutation is substantive: the effective candidate differs in the intended way after normalization, rendering, or serialization.
  9. Return only when the proposed effect, actual changed units, verification evidence, and structured result agree exactly.

Failure Handling (Core)

If verification fails, repair or remove the invalid change and rerun the same check. Do not hide the failure, modify protected evaluation logic, fabricate a successful result, or change intended semantics merely to satisfy a superficial check. The plugin-specific verification skill may impose stricter rules; those rules are part of the candidate contract.

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. 4d ago First seen · 47 lines · 28 tokens per session scan A faef9229ba28

Subscribe to this mod's changes

verification-baseline is a skill published in the GitHub repository microsoft/AutoSaddler (172 stars, last pushed 9d ago), licensed MIT. It adds 28 tokens to every session and 450 once invoked, about $0.0001 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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