superval

superval is a skill for Claude Code, Codex from adamos486/skills. It costs 59 tokens per session (9,502 once invoked), scanned C, original, MIT.

A validation workflow that checks whether a finished software build matches its implementation plan. It examines the project structure, connections between parts, and behaviour through outside-in tests that use the application's public interface.

In plain words
What is it for?
Use it after a phase-based or autonomous build to validate structure, wiring, and end-to-end behaviour against the plan.
Why use it?
It provides evidence that planned features exist, are connected, and work in practice. It can also identify missing work after a build stops partway.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/adamcobb/codes/autobuild.

Good fit Use it after a phase-based or autonomous build to validate structure, wiring, and end-to-end behaviour against the plan.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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 superval

README.md
[![agentmods](https://agentmods.dev/badge/skills/adamos486/skills/superval.svg)](https://agentmods.dev/skills/adamos486/skills/superval)
Your own site
<a href="https://agentmods.dev/skills/adamos486/skills/superval"><img src="https://agentmods.dev/badge/skills/adamos486/skills/superval.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,502 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 3 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 $0.00059 $0.09502
Opus 5 $0.00030 $0.04751
Sonnet 5 $0.00012 $0.01900
Haiku 4.5 $0.00006 $0.00950

Measured 7d ago against content hash c44f9f8a7a2e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade C, and why

superval scanned grade C with 3 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 7d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/detect-test-framework.sh, scripts/validate-structural.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

trap 'rm -rf $TMPDIR' EXIT

Makes network callslowCapability

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

#### Backend APIs -- curl/HTTP from outside the process

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

Spawn a process (bash, exec, subprocess.run)
superval/SKILL.md · 1,147 lines

How it starts

The opening of the file, as written. The whole thing — 1,147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Superval - Plan-Driven Validation Loop

Version: 1.0.0 by skulto

Overview

Superval is a plan-driven validation engine that proves a built project matches its plan. It reads the plan, reads all build state, detects the test framework, and validates at three levels (structural, wiring, behavioral). For behavioral verification, it writes outside-in black-box acceptance tests -- independent scripts (often bash or a scripting language) that automate the built application from the outside, never importing source code. It loops until everything passes. It never stops trying.

Core principle: The plan is the specification. The built code is the implementation. Superval is the proof. Acceptance tests treat the app as a black box -- they poke it from the outside, through its public interface, like a real user would.

Position in pipeline:

/superplan -> /superbuild or /autobuild -> /superval
  (plan)         (build)                    (validate)

When to Use

  • After /superbuild or /autobuild completes all phases
  • When you need proof that every planned feature exists and works
  • When a build failed partway and you need to assess what's missing
  • When resuming after context compaction and need to verify state
  • Before creating a PR to prove the implementation is correct

When NOT to Use

  • Before a plan exists (use /superplan first)
  • During active building (use /superbuild or /autobuild)
  • For projects without a plan document (nothing to validate against)

Execution Flow

digraph superval {
  rankdir=TB;
  node [shape=box, style=rounded];

  ingest [label="1. INGEST PLAN\nFind and read plan document"];
  state [label="2. READ STATE\nLoad .autobuild/ and plan checkboxes"];
  detect [label="3. DETECT STACK\nFind test framework and tools"];
  no_framework [label="ABORT\nNo test framework found.\nAdvise: /superplan bootstrap\nthe testing pyramid", shape=octagon, style="rounded,filled", fillcolor="#ffcccc"];
  extract [label="4. EXTRACT FEATURES\nBuild feature map from plan"];
  structural [label="5. STRUCTURAL VERIFICATION\nDo expected files exist?"];
  wiring [label="6. WIRING VERIFICATION\nAre modules connected?"];
  behavioral [label="7. BEHAVIORAL VERIFICATION\nDo features actually work?"];
  report [label="8. TRACEABILITY REPORT\nMap every feature to result"];
  all_pass [label="ALL PASS?\nEvery feature verified?", shape=diamond];
  done [label="VALIDATION COMPLETE\nReport: PASS", shape=doubleoctagon, style="rounded,filled", fillcolor="#ccffcc"];
  feedback [label="9. GENERATE FEEDBACK\nStructured failure diagnostics"];
  fix [label="10. FIX FAILURES\nAddress each failure"];
  no_plan [label="ABORT\nNo plan found", shape=octagon, style="rounded,filled", fillcolor="#ffcccc"];

  ingest -> state [label="plan found"];
  ingest -> no_plan [label="no plan"];
  state -> detect;
  detect -> no_framework [label="no test\nframework"];
  detect -> extract [label="framework\ndetected"];
  extract -> structural;
  structural -> wiring;
  wiring -> behavioral;
  behavioral -> report;
  report -> all_pass;
  all_pass -> done [label="yes"];
  all_pass -> feedback [label="no"];
  feedback -> fix;
  fix -> structural [label="re-validate\n(loop forever)"];
}

Read the full file on GitHub · 1,147 lines

Files

What ships with it

8 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. 7d ago First seen · 1,147 lines · 59 tokens per session scan C c44f9f8a7a2e

Subscribe to this mod's changes

superval is a skill published in the GitHub repository adamos486/skills (10 stars, last pushed 1mo ago), licensed MIT. It adds 59 tokens to every session and 9,502 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 3 findings (recursive force delete, makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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