forge-feature

A skill for managing a feature through its full lifecycle: framing, planning, implementation, checking, completion, resuming, accepting risk, or abandoning the work. A feature is a specific product capability or change.

In plain words
What is it for?
Building, continuing, checking, and shipping a defined feature in build mode.
Why use it?
It keeps feature work in explicit, CLI-enforced stages so the current status and next action are clear.

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/is-bo/fullstack-forge-skill/forge-feature
Any agent
npx skills add is-bo/fullstack-forge-skill --skill forge-feature
Clone the repo
git clone --depth 1 https://github.com/is-bo/fullstack-forge-skill

Made for: Claude Code, Codex.

Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 355 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 $0.00047 $0.00355
Opus 5 $0.00023 $0.00178
Sonnet 5 $0.00009 $0.00071
Haiku 4.5 $0.00005 $0.00036

Measured 2d ago against content hash faae2f1faf03, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

forge-feature 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 2d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.agents/skills/forge-feature/SKILL.md · 30 lines

What it actually says

Fullstack Forge adapter: forge-feature

This file is a pointer maintained by Fullstack Forge. It exists so this agent host can discover and trigger the skill. The full playbook is not duplicated here: one canonical copy is shared by every installed host.

Read the canonical playbook now and follow it exactly:

../../../.fullstack-forge/skills/forge-feature/SKILL.md

That path is relative to this file. From the installation root it is .fullstack-forge/skills/forge-feature/SKILL.md. Every resource the playbook references (fullstack-forge/references/..., fullstack-forge/schemas/..., fullstack-forge/templates/..., fullstack-forge/profiles/...) resolves relative to .fullstack-forge/skills/. The canonical playbook owns any deterministic composition step; perform that step exactly once. This adapter never adds a second workflow or composition command.

Do not edit this adapter; edit the canonical playbook instead. If the canonical file is missing or unreadable the installation is damaged. Report it and repair through the same project-package, archive, or plugin mechanism that installed this adapter. Never fall back to an unpinned npx forge, which may resolve an unrelated public package.

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. 2d ago First seen · 30 lines · 47 tokens per session scan A faae2f1faf03

Subscribe to this mod's changes

forge-feature is a skill published in the GitHub repository is-bo/fullstack-forge-skill (2 stars, last pushed 4d ago), licensed Apache-2.0. It adds 47 tokens to every session and 355 once invoked, about $0.0002 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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