A planning tool that turns one item from build-plan.md into a detailed specification that developers can implement. build-plan.md is a checklist of planned features.

Use it to specify the next planned feature or a named feature before building it.

It fills in the missing detail between a high-level feature list and actual coding, including scope and implementation requirements.

How aiblueprinthq/ai-blueprint configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to aiblueprinthq/ai-blueprint. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/aiblueprinthq/ai-blueprint/main/.agents/skills/feature/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/aiblueprinthq/ai-blueprint

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aiblueprinthq/ai-blueprint/feature/github.svg)](https://agentmods.dev/skills/aiblueprinthq/ai-blueprint/feature)

Your own site

<a href="https://agentmods.dev/skills/aiblueprinthq/ai-blueprint/feature"><img src="https://agentmods.dev/badge/skills/aiblueprinthq/ai-blueprint/feature/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aiblueprinthq/ai-blueprint/feature"><img src="https://agentmods.dev/badge/skills/aiblueprinthq/ai-blueprint/feature.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,440 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00044	$0.02440
Opus 5.5	$0.00018	$0.00976
Sonnet 5.5	$0.00009	$0.00488
Haiku 4.5	$0.00004	$0.00244

Measured 7d ago against content hash 3b7b6ca11d58, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

feature scanned grade B 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 7d 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.

Enumerates other installed skillsmediumAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

not inspect other skill directories, `ai-interaction.md`, findings, review records,

.agents/skills/feature/SKILL.md · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

feature - create the active implementation spec

Context reuse: Reuse any required file already loaded in project instructions or the current session. Read it again only if absent, changed, or exact current bytes or line references are needed.

This skill plans one feature and stops before implementation. Its output is blueprint/context/current-feature.md.

Start

First action: Before project inspection, preflight, or any other tool call, publish the feature activity as running when blueprint/.state/ exists. From the project root, run the first helper that exists, node .agents/skills/blueprint-doctor/scripts/run-state.mjs or node .claude/skills/blueprint-doctor/scripts/run-state.mjs, with start --command <skill> --summary "<truthful summary>" --boundary <read-only|reviewed|local-only>. Use update at milestones, with --status blocked --resume <command> for a blocker, and finish --status ready|completed at the end; --help lists every option and blueprint/workflow.md has the full activity contract. A missing or failing helper is a warning, not a blocker. Combine that write with the first context-gathering tool batch when the adapter supports it.

Read blueprint/config.json only for settings that affect the spec. Invalid configuration stops mutating work and points to /blueprint-doctor.

Confirm that blueprint/context/current-feature.md is the empty stub. If it contains active work, stop and direct the user to resume or complete it. Never replace another worker's active spec. Parallel work uses one clone or Git worktree per work item, with a separate branch in each checkout.

Resolve the target from blueprint/build-plan.md:

Use the requested number or name when it matches a checklist item.
With no argument, use the first unchecked leaf item.
Read only the matching checklist line, its parent, and nearby text needed to understand the hierarchy.
If a plain list has no checkboxes, treat its first item as unchecked and offer to convert the plan after the spec review.

Read the full file on GitHub · 218 lines

Files

What ships with it

2 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.

7d ago Changed · +8 lines 3b7b6ca11d58
1mo ago Changed · +4 lines 2bac9f0866a8
1mo ago Changed · +17 lines 54f9b16ef5b8
1mo ago Changed · +17 lines scan A → B f173eadd2be0
2mo ago Changed · +9 lines 3024cb7d2344
2mo ago Changed · -50 lines · -121 tokens per session adb2e5b64569
2mo ago First seen · 213 lines · 165 tokens per session scan A cd63453d4de0

Subscribe to this mod's changes

feature is a skill published in the GitHub repository aiblueprinthq/ai-blueprint (493 stars, last pushed 7d ago), licensed MIT. It adds 44 tokens to every session and 2,440 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Planning

feature next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
featureaiblueprinthq/ai-blueprint	Skill	493	7d ago	MIT	B	44	Claude Code, Codex
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code

ai-blueprint: Skill for Claude Code