macro: Skill for Claude Code

.claude/skills/define-feature-flag/SKILL.md

define-feature-flag is a skill for Claude Code from macro-inc/macro. It costs 60 tokens per session (821 once invoked), scanned A, original, AGPL-3.0.

A guide for defining frontend feature flags and connecting the code that reads them. A feature flag is a switch that enables or disables a feature without changing the main code path.

In plain words
What is it for?
Use it when adding, changing, or suggesting flags such as ENABLE settings, PostHog flags, isFeatureEnabled, or ShowFeatureFlag.
Why use it?
It helps keep flag definitions and their readers consistent when a feature is controlled by PostHog, an environment variable, or a helper such as useFeatureFlag.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is macro-inc/macro's own configuration. It tells Claude Code how to work on macro itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything macro configures →

About the project

Macro is a shared workspace that brings email, chat, documents, tasks, AI agents, calls, and customer relationship management into one connected system. It is for teams that want work information and cross-references in a single searchable environment. The catalogue entries provide skills, instructions, MCP integrations, commands, settings, and an agent for working with Macro.

macro-inc/macro · 4,209 stars · on GitHub · macro.com

Reuse

Borrowing it

Nothing to install: this file belongs to macro-inc/macro. 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/macro-inc/macro/main/.claude/skills/define-feature-flag/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/macro-inc/macro

Made for: Claude Code.

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 define-feature-flag

README.md
[![agentmods](https://agentmods.dev/badge/skills/macro-inc/macro/define-feature-flag.svg)](https://agentmods.dev/skills/macro-inc/macro/define-feature-flag)
Your own site
<a href="https://agentmods.dev/skills/macro-inc/macro/define-feature-flag"><img src="https://agentmods.dev/badge/skills/macro-inc/macro/define-feature-flag.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 821 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00060 $0.00821
Opus 5 $0.00030 $0.00411
Sonnet 5 $0.00012 $0.00164
Haiku 4.5 $0.00006 $0.00082

Measured yesterday against content hash d76bf9843e50, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

define-feature-flag 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 yesterday.

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.

.claude/skills/define-feature-flag/SKILL.md · 82 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. yesterday First seen · 82 lines · 60 tokens per session scan A d76bf9843e50

Subscribe to this mod's changes

define-feature-flag is a skill published in the GitHub repository macro-inc/macro (4,209 stars, last pushed today), licensed AGPL-3.0. It adds 60 tokens to every session and 821 once invoked, about $0.0003 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 2026-09-05.

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