feature-flags-audit

A tool that lists and reviews feature flags in the Packmind codebase. A feature flag is a switch in software that controls whether a feature is available to certain users or groups.

In plain words
What is it for?
Use it to see declared flags, understand what each flag controls, check email-domain or email-based access, and find unused flags.
Why use it?
It provides one scannable inventory instead of requiring developers to search frontend and backend code separately for flags and their targeting rules.

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/packmindhub/packmind/feature-flags-audit
Any agent
npx skills add PackmindHub/packmind --skill feature-flags-audit
Clone the repo
git clone --depth 1 https://github.com/PackmindHub/packmind

Made for: Claude Code, Codex.

Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,596 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 $0.00093 $0.03596
Opus 5 $0.00046 $0.01798
Sonnet 5 $0.00019 $0.00719
Haiku 4.5 $0.00009 $0.00360

Measured 3d ago against content hash 06ef9be668c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

feature-flags-audit 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 3d 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.

.claude/skills/feature-flags-audit/SKILL.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Feature Flags Audit

Produce a synthetic inventory of every feature flag declared in the Packmind codebase, with audience targeting, inferred functional descriptions, and orphan detection. The result is a single markdown table the user can scan at a glance.

Context

Packmind uses a custom feature flag system shared by both frontend and backend. There is no third-party library (LaunchDarkly, GrowthBook, PostHog, etc.). Flags are gated by email domain or exact email via a single central registry. There is no org-based, plan-based, or percentage-rollout mechanism — audience targeting is email-based only. One runtime override does exist: an FF_* env kill-switch (see below) can force a flag fully on or off regardless of the email rule.

Canonical source of truth: packages/feature-flags/src/registry.ts (the shared, browser-safe @packmind/feature-flags package)

This file exports:

  • Flag key constants ending in _FEATURE_KEY (e.g. SPACES_MANAGEMENT_FEATURE_KEY = 'spaces-management').
  • The FeatureFlagKey union of all valid flag string values.
  • DEFAULT_FEATURE_DOMAIN_MAP: a Record<string, readonly string[]> mapping each flag's string value to a list of allowed entries. Entries starting with @ are domain rules (e.g. @packmind.com matches any user at that domain). Entries containing @ but not starting with @ are exact email matches.
  • The isFeatureFlagEnabled() pure function used at call sites (defined in packages/feature-flags/src/isFeatureFlagEnabled.ts).

The registry is consumed on both sides: the frontend imports it via @packmind/ui (which re-exports the keys, DEFAULT_FEATURE_DOMAIN_MAP, and isFeatureFlagEnabled for back-compat; packages/ui/src/lib/components/content/PMFeatureFlag/PMFeatureFlag.tsx now holds only the PMFeatureFlag React wrapper component). The backend evaluates the same registry through the isFeatureEnabled(flag, { userEmail }) helper in @packmind/node-utils (packages/node-utils/src/featureFlags/isFeatureEnabled.ts), which layers the FF_* env kill-switch on top of the shared email-domain rule.

Read the full file on GitHub · 159 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. 3d ago First seen · 159 lines · 93 tokens per session scan A 06ef9be668c4

Subscribe to this mod's changes

feature-flags-audit is a skill published in the GitHub repository PackmindHub/packmind (306 stars, last pushed 5d ago), licensed Apache-2.0. It adds 93 tokens to every session and 3,596 once invoked, about $0.0005 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 2026-08-30.

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