aigon-feature-create

aigon-feature-create is a skill for Claude Code, Codex from jayvee/aigon. It costs 15 tokens per session (1,827 once invoked), scanned A, original, Apache-2.0.

A command that creates a new feature specification file in a project's inbox folder. A feature specification describes what should be built and how it should work.

In plain words
What is it for?
Starting a feature request, then reading the generated file and documenting the relevant architecture, dependencies, and acceptance criteria.
Why use it?
It gives a new feature a known place and structure before implementation begins, so the agent can investigate the codebase and record an informed plan.

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/jayvee/aigon/aigon-feature-create
Any agent
npx skills add jayvee/aigon --skill aigon-feature-create
Clone the repo
git clone --depth 1 https://github.com/jayvee/aigon

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 aigon-feature-create

README.md
[![agentmods](https://agentmods.dev/badge/skills/jayvee/aigon/aigon-feature-create.svg)](https://agentmods.dev/skills/jayvee/aigon/aigon-feature-create)
Your own site
<a href="https://agentmods.dev/skills/jayvee/aigon/aigon-feature-create"><img src="https://agentmods.dev/badge/skills/jayvee/aigon/aigon-feature-create.svg" alt="Measured on agentmods" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,827 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 $0.00015 $0.01827
Opus 5 $0.00008 $0.00914
Sonnet 5 $0.00003 $0.00365
Haiku 4.5 $0.00002 $0.00183

Measured 4d ago against content hash eaac285da6f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

aigon-feature-create 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.

.agents/skills/aigon-feature-create/SKILL.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

aigon-feature-create

Run this command followed by the feature name.

aigon feature-create $ARGUMENTS

This creates a new feature spec in ./docs/specs/features/01-inbox/.

IMPORTANT: Do not launch or foreground an editor, terminal, or Markdown preview after creation. Continue by reading and editing the spec through the current agent session; use the exact path printed by the CLI.

Step 1: Read Project Conventions

Tip: If you are running this command in your own Claude Code session (no --agent flag), press Shift+Tab now to enter plan mode before drafting — this keeps your session read-only while you explore the codebase and propose the spec.

Explore the codebase to understand the existing architecture, patterns, and code relevant to this feature. Use that investigation both to plan the approach and to resolve technical facts without asking the user. Consider:

  • What existing code will this feature interact with?
  • Are there patterns or conventions in the codebase to follow?
  • What technical constraints or dependencies exist?

Use this understanding to write a well-informed spec — especially the Technical Approach, Dependencies, and Acceptance Criteria sections.

Step 2: Deepen — interview the user before writing

Follow this procedure literally. Deepen applies to this installed agent command; the bare aigon feature-create CLI remains a noninteractive scaffolder.

  1. Apply the gate. Inspect the raw invocation arguments in the command above. If they contain --quick, skip the rest of Deepen and continue to Step 3. Otherwise run:

    aigon config get deepen.enabled
    

    Skip the rest of Deepen only when the effective value is false. Remember whether a value of true was reported as (from default) or came from explicit project/global configuration; this controls the final hint below.

  2. Build a coverage map before asking anything. Read the user's request, the bare-bones spec just created, any available planning context, and the relevant code. If the in-flight spec has planning_context:, read that plan and use it as the source of recommended answers. Do not re-interview the user about decisions already resolved there. Investigate discoverable technical facts — including existing patterns, dependencies, constraints, and file paths — instead of asking the user for them.

  3. Check coverage internally in dependency order: Summary → User Stories → Acceptance Criteria → Technical Approach → Dependencies → Out of Scope → complexity:. This is a decision dependency order, not a requirement to ask one question for every section. Ask only when the answer could materially change scope, acceptance criteria, or approach.

  4. Ask the highest-leverage unresolved question, one question per message. Every question must challenge a consequential assumption or surface a meaningful alternative; do not ask a template-completion question. Attach a proposed answer on its own clearly labelled line:

Read the full file on GitHub · 158 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. 4d ago First seen · 158 lines · 15 tokens per session scan A eaac285da6f8

Subscribe to this mod's changes

aigon-feature-create is a skill published in the GitHub repository jayvee/aigon (24 stars, last pushed 2d ago), licensed Apache-2.0. It adds 15 tokens to every session and 1,827 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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