amby-revise

amby-revise is a skill for Claude Code, Codex from ambystechcom/AmbyKit. It costs 28 tokens per session (602 once invoked), scanned A, original, MIT.

A skill for continuing an existing AmbyKit feature specification or design document in place. AmbyKit is a project workflow that stores these documents under a specs folder.

In plain words
What is it for?
Use it when a feature needs more user stories, requirements, success criteria, or design work.
Why use it?
It keeps earlier decisions and item numbers intact while adding detail, and avoids editing a feature that is already marked complete.

Skill for Claude CodeCodex

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

Good fit Use it when a feature needs more user stories, requirements, success criteria, or design work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ambystechcom/ambykit/amby-revise
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.

Any agent
npx skills add ambystechcom/AmbyKit --skill amby-revise
Clone the repo
git clone --depth 1 https://github.com/ambystechcom/AmbyKit

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 amby-revise

README.md
[![agentmods](https://agentmods.dev/badge/skills/ambystechcom/ambykit/amby-revise/github.svg)](https://agentmods.dev/skills/ambystechcom/ambykit/amby-revise)
Your own site
<a href="https://agentmods.dev/skills/ambystechcom/ambykit/amby-revise"><img src="https://agentmods.dev/badge/skills/ambystechcom/ambykit/amby-revise/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 amby-revise

Your own site · 80×15
<a href="https://agentmods.dev/skills/ambystechcom/ambykit/amby-revise"><img src="https://agentmods.dev/badge/skills/ambystechcom/ambykit/amby-revise.svg" alt="Reviewed on agentmods" width="80" 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 602 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 $0.00028 $0.00602
Opus 5 $0.00014 $0.00301
Sonnet 5 $0.00006 $0.00120
Haiku 4.5 $0.00003 $0.00060

Measured 8d ago against content hash d6391e244311, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

amby-revise 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.

.agents/skills/amby-revise/SKILL.md · 33 lines

What it actually says

Act as the Product Manager in @.amby/roles/pm.md and say so in your first line. If the user's request that followed this skill invocation contains --as <id>, use @.amby/roles/<id>.md instead; if that file is missing, stop and list the files in .amby/roles/.

Continue the spec (and, optionally, the design) for feature the user's request that followed this skill invocation (default: the current feature).

Context: read only that feature's spec.md (and its ui.md if continuing design) plus the structure of @.amby/templates/spec.md. This command extends an existing feature — it is not specify (which starts a new feature) nor clarify (which only resolves [NEEDS CLARIFICATION] markers).

  1. Resolve the feature dir specs/NNN-slug/. If it — or its spec.md — cannot be found, report a clear error and make no changes.
  2. Done-guard. If the spec.md frontmatter status: is done, make no edits: tell the author the feature is complete and to run /amby.specify for a new feature. Stop here.
  3. Otherwise continue in place (patch, never regenerate — Principle 3):
    • Add new user stories (US-#), requirements (FR-###), and success criteria (SC-###), each taking the next available number. Preserve every existing id and its text verbatim.
    • Refine existing items only where the author asked; keep their ids stable.
    • New requirements use EARS (SHALL / WHEN / WHILE / IF-THEN / WHERE); new acceptance criteria use Given/When/Then — consistent with specify.
    • Leave any story already marked status: done untouched; you may still add new stories.
  4. Set the spec.md frontmatter status: to in-progress.
  5. Design (optional). If the author is continuing the UI/design and ui.md exists, extend it in place, preserving existing sections. If ui.md does not exist, do not create it here — direct the author to run /amby.design.
  6. Keep edits minimal and token-frugal; cite the constitution by principle number where relevant.

Report what you added or changed, by id.

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 · 33 lines · 28 tokens per session scan A d6391e244311

Subscribe to this mod's changes

amby-revise is a skill published in the GitHub repository ambystechcom/AmbyKit (2 stars, last pushed 6d ago), licensed MIT. It adds 28 tokens to every session and 602 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 2026-08-31.

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