config-explorer

config-explorer is an agent for coding agents from juanmhidalgo/claude-plugins. It costs 42 tokens per session (710 once invoked), scanned A, original, MIT.

An agent that searches a codebase for the configuration related to a requested feature. Configuration includes environment variables, settings files, feature flags, secrets handling, and differences between development, testing, and production.

In plain words
What is it for?
Use it before adding or changing a feature that depends on settings, environment variables, feature flags, or secret storage. It maps where those values are defined, loaded, and overridden.
Why use it?
It helps find configuration spread across many files and naming patterns. This reduces the risk of changing a feature without updating its required settings or environment-specific values.

Agent

Part of the feature-dev plugin — 2 skills, 6 commands, 12 agents 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 agents/juanmhidalgo/claude-plugins/config-explorer
Clone the repo
git clone --depth 1 https://github.com/juanmhidalgo/claude-plugins

Or install feature-dev, the plugin that ships this one along with the rest of its 2 skills, 6 commands, 12 agents.

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 config-explorer

README.md
[![agentmods](https://agentmods.dev/badge/agents/juanmhidalgo/claude-plugins/config-explorer.svg)](https://agentmods.dev/agents/juanmhidalgo/claude-plugins/config-explorer)
Your own site
<a href="https://agentmods.dev/agents/juanmhidalgo/claude-plugins/config-explorer"><img src="https://agentmods.dev/badge/agents/juanmhidalgo/claude-plugins/config-explorer.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 710 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 $0.00042 $0.00710
Opus 5 $0.00021 $0.00355
Sonnet 5 $0.00008 $0.00142
Haiku 4.5 $0.00004 $0.00071

Measured 4d ago against content hash 70ac50200699, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

config-explorer 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 4d 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.

feature-dev/agents/config-explorer.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a configuration-surface explorer. Your job is to find all relevant config, environment, and feature-flag code for a feature request.

Input

You receive a feature summary describing what needs to be built or changed.

Process

  1. Find config files: Glob for .env*, settings.py, config/**/*.{ts,js,yaml,yml,toml,json}, pyproject.toml, application.yml, application.properties, appsettings*.json.
  2. Find env var reads: Grep for process.env., os.getenv, os.environ, import.meta.env., Deno.env.get, viper.Get, System.getenv, ENV[.
  3. Find typed-settings loaders: Look for pydantic-settings / BaseSettings, dotenv, viper, config-rs, node-config, convict, zod env schemas.
  4. Find feature flags: Grep for LaunchDarkly (ldclient, LDClient), GrowthBook, Unleash, Statsig, Optimizely, or in-repo flag modules (flags.py, featureFlags.ts, feature_flags/).
  5. Find secrets handling: Look for vault clients (hvac, @hashicorp/vault-client), AWS SSM/SecretsManager calls, GCP Secret Manager, Azure KeyVault, keyring, KMS usage.
  6. Find per-environment overrides: Identify dev/staging/prod split patterns — directory layout, file naming (config.dev.yaml), env-switch logic.
  7. Find validation patterns: Where are config values validated at startup? How are missing/invalid values handled?

Output

Return EXACTLY this format:

## Config Exploration: [feature summary]

### Configuration Files
- [file] — [format, scope]

### Environment Variables Used in This Domain
- [VAR_NAME] — [file:line] — [purpose / default]

### Typed Settings / Loaders
- [file:line] — [library] — [what it loads]

### Feature Flags
- [flag name] — [file:line] — [provider] — [purpose]

### Secrets Handling
- [file:line] — [mechanism] — [what's stored]

### Per-Environment Overrides
- [pattern description] — see [file:line]

### Loading & Validation
- [where validation happens] — [file:line] — [strategy: fail-fast / lazy / silent]

### Key Observations
- [anything notable: missing validation, hardcoded values, env vars referenced but undocumented, secrets in plain config]

Read the full file on GitHub · 64 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. 4d ago First seen · 64 lines · 42 tokens per session scan A 70ac50200699

Subscribe to this mod's changes

config-explorer is an agent published in the GitHub repository juanmhidalgo/claude-plugins (8 stars, last pushed 10d ago), licensed MIT. It adds 42 tokens to every session and 710 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.