launchdarkly-flag-create

launchdarkly-flag-create is a skill for Claude Code, Codex from Bilal140202/the-lord-of-the-skills. It costs 61 tokens per session (1,819 once invoked), scanned A, original, MIT.

A guided workflow for adding a LaunchDarkly feature flag to an existing codebase. LaunchDarkly is a service that lets teams turn features on or off without changing and redeploying application code.

In plain words
What is it for?
Use it to create a flag, put new code behind it, add a feature toggle, or set up an experiment flag.
Why use it?
It avoids creating flags that do not match the project's existing patterns or wiring them into code incorrectly. It checks the new flag after creation.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create a flag, put new code behind it, add a feature toggle, or set up an experiment flag.

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Install with agentmods
npx agentmods add skills/bilal140202/the-lord-of-the-skills/feature-flags-launchdarkly-flag-create
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.

Any agent
npx skills add Bilal140202/the-lord-of-the-skills --skill feature-flags-launchdarkly-flag-create
Clone the repo
git clone --depth 1 https://github.com/Bilal140202/the-lord-of-the-skills

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 launchdarkly-flag-create

README.md
[![agentmods](https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/feature-flags-launchdarkly-flag-create/github.svg)](https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/feature-flags-launchdarkly-flag-create)
Your own site
<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/feature-flags-launchdarkly-flag-create"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/feature-flags-launchdarkly-flag-create/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.

agentmods 80×15 button for launchdarkly-flag-create

Your own site · 80×15
<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/feature-flags-launchdarkly-flag-create"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/feature-flags-launchdarkly-flag-create.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,819 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00061 $0.01819
Opus 5 $0.00030 $0.00910
Sonnet 5 $0.00012 $0.00364
Haiku 4.5 $0.00006 $0.00182

Measured 6d ago against content hash 37b02268096c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

launchdarkly-flag-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 6d 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.

skills/gondor/claude-code/LaunchDarkly__agent-skills/feature-flags-launchdarkly-flag-create-SKILL.md · 132 lines

How it starts

The opening of the file, as written. The whole thing — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LaunchDarkly Flag Create & Configure

You're using a skill that will guide you through introducing a new feature flag into a codebase. Your job is to explore how flags are already used in this codebase, create the flag in LaunchDarkly in a way that fits, add the evaluation code matching existing patterns, and verify everything is wired up correctly.

Prerequisites

This skill requires the remotely hosted LaunchDarkly MCP server to be configured in your environment.

Required MCP tools:

  • create-flag: create a new feature flag in a project
  • get-flag: verify the flag was created correctly

Optional MCP tools (enhance workflow):

  • list-flags: browse existing flags to understand naming conventions and tags
  • update-flag-settings: update flag metadata (name, description, tags, temporary/permanent status)

Workflow

Step 1: Explore the Codebase

Before creating anything, understand how this codebase uses feature flags.

  1. Find the SDK. Search for LaunchDarkly SDK imports or initialization:

    • Look for launchdarkly, ldclient, ld-client, LDClient in imports
    • Check package.json, requirements.txt, go.mod, Gemfile, or equivalent for the SDK dependency
    • Identify which SDK is in use (server-side Node, React, Python, Go, Java, etc.)
  2. Find existing flag evaluations. Search for variation calls to understand the patterns this codebase uses:

    • Direct SDK calls: variation(), boolVariation(), useFlags(), etc.
    • Wrapper patterns: Does this codebase abstract flags behind a service or utility?
    • Constant definitions: Are flag keys defined as constants somewhere?
    • See SDK Evaluation Patterns for patterns by language
  3. Understand conventions. Look at existing flags to learn:

    • Naming convention: Are keys kebab-case, snake_case, camelCase?
    • Organization: Are flag keys co-located with features, or centralized in a constants file?
    • Default values: What defaults do existing evaluations use?
    • Context/user construction: How does this codebase build the user/context object passed to the SDK? This determines which context kinds and attributes any future targeting can use — and it differs by surface (server vs client vs anonymous). See Context Availability before planning a rule, individual target, or rollout.

Read the full file on GitHub · 132 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. 6d ago First seen · 132 lines · 61 tokens per session scan A 37b02268096c

Subscribe to this mod's changes

launchdarkly-flag-create is a skill published in the GitHub repository Bilal140202/the-lord-of-the-skills (4 stars, last pushed 6d ago), licensed MIT. It adds 61 tokens to every session and 1,819 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 2026-09-06.

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