Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add ericgandrade/claude-superskills/plugin install claude-superskillsWrote 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.
[](https://agentmods.dev/skills/ericgandrade/claude-superskills/agent-skill-discovery)<a href="https://agentmods.dev/skills/ericgandrade/claude-superskills/agent-skill-discovery"><img src="https://agentmods.dev/badge/skills/ericgandrade/claude-superskills/agent-skill-discovery/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.
<a href="https://agentmods.dev/skills/ericgandrade/claude-superskills/agent-skill-discovery"><img src="https://agentmods.dev/badge/skills/ericgandrade/claude-superskills/agent-skill-discovery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00084 | $0.04985 |
| Opus 5 | $0.00042 | $0.02492 |
| Sonnet 5 | $0.00017 | $0.00997 |
| Haiku 4.5 | $0.00008 | $0.00498 |
Grade B, and why
agent-skill-discovery scanned grade B 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 11d 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.
Reads MCP configurationmediumAgent snooping
mcp.json carries server URLs and auth tokens; reading it lets a mod discover and abuse other integrations.
**3.1 Read MCP Configuration:** How it starts
The opening of the file, as written. The whole thing — 711 lines — stays where its author put it; the contents beside it link to each section on GitHub.
agent-skill-discovery
Purpose
Automated inventory of AI CLI resources across two scopes: resources installed on the system and resources present in the current repository. This skill provides a comprehensive, platform-agnostic catalog of plugins, agents, skills, and MCP servers available in the current environment.
The skill operates in discovery-only mode—it scans, lists, and presents resources without performing analysis, recommendations, or orchestration. It serves as the foundation layer for resource awareness across all supported AI CLI platforms.
When to Use
Invoke this skill when:
- User wants to know what resources are installed
- Before planning complex tasks (foundation for orchestration)
- Debugging missing resources or capabilities
- Auditing available tools and integrations
- Discovering newly installed plugins or MCP servers
- Verifying skill installation after setup
- Understanding platform capabilities
- Checking whether the current repository contains local agents, skills, or MCP configs
Progress Tracking
Display a progress gauge before each step to keep the user informed:
[████░░░░░░░░░░░░░░░░] 15% — Step 1/6: Scanning Plugins
[████████░░░░░░░░░░░░] 30% — Step 2/6: Scanning Skills
[████████████░░░░░░░░] 45% — Step 3/6: Scanning MCP Servers
[████████████████░░░░] 60% — Step 4/6: Scanning Repository
[██████████████████░░] 75% — Step 5/6: Applying Filters
[████████████████████] 100% — Step 6/6: Generating Catalog
Parallel Scanning Strategy
After platform detection (Step 0), launch Steps 1–4 as four simultaneous agents in a single block:
| Agent | Role |
|---|---|
PluginScanner |
Glob for plugin.json files, extract name/version/agents metadata |
SkillScanner |
Glob for SKILL.md files, parse YAML frontmatter, extract name/description/triggers |
McpScanner |
Read .mcp.json, run ToolSearch per server, build tool inventory |
RepoScanner |
Scan current working directory for local agents, skills, and MCP configs |
What ships with it
3 files 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.
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.
- 11d ago First seen · 711 lines · 84 tokens per session scan B 295a9b4edade
agent-skill-discovery is a skill published in the GitHub repository ericgandrade/claude-superskills (75 stars, last pushed 4mo ago), licensed MIT. It adds 84 tokens to every session and 4,985 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 1 finding (reads mcp configuration). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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