go-feature-flag

go-feature-flag is a skill for Claude Code, Codex from laurigates/claude-plugins. It costs 44 tokens per session (2,671 once invoked), scanned A, original, MIT.

A guide for GO Feature Flag, a self-hosted system that turns application features on or off for selected users or conditions.

In plain words
What is it for?
Use it to create GO Feature Flag configuration, set targeting and rollout rules, connect OpenFeature, and deploy the relay proxy.
Why use it?
It helps developers configure feature flags and rollout rules without relying on a hosted feature-flag service.

Skill for Claude CodeCodex

Part of the configure-plugin plugin — 48 skills shipped together

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/laurigates/claude-plugins/go-feature-flag
Any agent
npx skills add laurigates/claude-plugins --skill go-feature-flag
Clone the repo
git clone --depth 1 https://github.com/laurigates/claude-plugins

Made for: Claude Code, Codex.

Or install configure-plugin, the plugin that ships this one along with the rest of its 48 skills.

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 go-feature-flag

README.md
[![agentmods](https://agentmods.dev/badge/skills/laurigates/claude-plugins/go-feature-flag.svg)](https://agentmods.dev/skills/laurigates/claude-plugins/go-feature-flag)
Your own site
<a href="https://agentmods.dev/skills/laurigates/claude-plugins/go-feature-flag"><img src="https://agentmods.dev/badge/skills/laurigates/claude-plugins/go-feature-flag.svg" alt="Measured on agentmods" 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 2,671 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00044 $0.02671
Opus 5 $0.00022 $0.01336
Sonnet 5 $0.00009 $0.00534
Haiku 4.5 $0.00004 $0.00267

Measured yesterday against content hash 521aa1bf0d60, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

go-feature-flag scanned grade A 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

test: ["CMD", "wget", "-q", "--spider", "http://localhost:1032/health"]
configure-plugin/skills/go-feature-flag/SKILL.md · 383 lines

How it starts

The opening of the file, as written. The whole thing — 383 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GO Feature Flag

When to Use This Skill

Use this skill when... Use a sibling skill instead when...
You need GOFF-specific configuration — flags.goff.yaml, relay proxy, targeting rules You only need the vendor-agnostic OpenFeature SDK API — use openfeature
You are deploying or operating the self-hosted GOFF backend You want to scaffold the full feature-flag stack including provider selection — use configure-feature-flags
Another skill needs the canonical GOFF flag-file shape You are evaluating which feature-flag provider to adopt — start with configure-feature-flags

Open-source feature flag solution with file-based configuration and OpenFeature integration. Use when setting up self-hosted feature flags, configuring flag files, or deploying the relay proxy.

When to Use

Automatic activation triggers:

  • User mentions "GO Feature Flag", "GOFF", or "gofeatureflag"
  • Project has @openfeature/go-feature-flag-provider dependency
  • Project has flags.goff.yaml or similar flag configuration
  • User asks about self-hosted feature flags
  • Docker/K8s configuration includes gofeatureflag/go-feature-flag image

Related skills:

  • openfeature - OpenFeature SDK usage patterns
  • container-development - Docker/K8s deployment

Architecture Overview

┌─────────────────────────────────────────────────────────────┐
│                     Application                              │
│                         │                                    │
│                   OpenFeature SDK                            │
│                         │                                    │
│              GO Feature Flag Provider                        │
└─────────────────────────────────────────────────────────────┘
                          │
                          ▼
┌─────────────────────────────────────────────────────────────┐
│                 GO Feature Flag Relay Proxy                  │
│  ┌─────────────────────────────────────────────────────────┐│
│  │                    Retriever                            ││
│  │  (File, S3, GitHub, HTTP, K8s ConfigMap, etc.)         ││
│  └─────────────────────────────────────────────────────────┘│
│  ┌─────────────────────────────────────────────────────────┐│
│  │                    Exporter                             ││
│  │  (Webhook, S3, Kafka, PubSub, etc.)                    ││
│  └─────────────────────────────────────────────────────────┘│
│  ┌─────────────────────────────────────────────────────────┐│
│  │                   Notifier                              ││
│  │  (Slack, Discord, Teams, Webhook)                      ││
│  └─────────────────────────────────────────────────────────┘│
└─────────────────────────────────────────────────────────────┘
                          │
                          ▼
┌─────────────────────────────────────────────────────────────┐
│                   Flag Configuration                         │
│                    (flags.goff.yaml)                         │
└─────────────────────────────────────────────────────────────┘

Read the full file on GitHub · 383 lines

Files

What ships with it

1 file 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.

  1. yesterday First seen · 383 lines · 44 tokens per session scan A 521aa1bf0d60

Subscribe to this mod's changes

go-feature-flag is a skill published in the GitHub repository laurigates/claude-plugins (57 stars, last pushed yesterday), licensed MIT. It adds 44 tokens to every session and 2,671 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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