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.
npx skills add fusengine/agents --skill explorationgit clone --depth 1 https://github.com/fusengine/agentsWrote 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/fusengine/agents/exploration)<a href="https://agentmods.dev/skills/fusengine/agents/exploration"><img src="https://agentmods.dev/badge/skills/fusengine/agents/exploration/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/fusengine/agents/exploration"><img src="https://agentmods.dev/badge/skills/fusengine/agents/exploration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 57 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00023 | $0.00808 |
| Opus 5.5 | $0.00009 | $0.00323 |
| Sonnet 5.5 | $0.00005 | $0.00162 |
| Haiku 4.5 | $0.00002 | $0.00081 |
Grade A, and why
exploration 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
It is evidence-based only -- no assumptions without code proof -- and produces a structured report of tech stack, entry points, and detected architecture pattern for whoever consumes it (typically the APEX Analyze phase or a domain expert).
Session: ${CLAUDE_SESSION_ID}
Exploration Skill
Exploration Protocol
Run these 5 phases in order — full commands in references/exploration-protocol.md:
- Initial Reconnaissance — list root files, find config files, check common entry points
- Structure Mapping — tree view (excluding noise dirs), identify main directories
- Entry Points Detection — grep for
main/index/server bootstrap per language - Dependency Analysis — read
package.json/pyproject.toml/go.mod/Cargo.toml/composer.json - Pattern Detection — check for MVC, Clean/Hexagonal, feature-based, Next.js App Router directories
Architecture Pattern Detection
Pattern Indicators
| Pattern | Key Directories | Indicators |
|---|---|---|
| MVC | controllers/, models/, views/ |
Rails, Laravel, Express |
| Clean Architecture | domain/, application/, infrastructure/ |
DDD, Use cases |
| Hexagonal | adapters/, ports/, core/ |
Ports & adapters |
| Feature-based | features/[name]/ |
All layers per feature |
| Layered | presentation/, business/, data/ |
Traditional 3-tier |
| Monolith | Single src/ |
Mixed concerns |
| Microservices | Multiple services/ |
Separate repos/folders |
| Next.js App Router | app/, components/, lib/ |
Server/Client components |
| Modular Monolith | modules/[name]/ |
Bounded contexts |
What ships with it
5 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.
- 1mo ago First seen · 77 lines · 23 tokens per session scan A b5325e5f8ef5
exploration is a skill published in the GitHub repository fusengine/agents (31 stars, last pushed 3d ago), licensed MIT. It adds 23 tokens to every session and 808 once invoked, about $0.0001 per session on Opus 5.5. 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.
Other skills, from other repositories
radin-record
Log bugs, follow-ups, ideas or feedback raised this session as backlog entries that outlive the conversation. Use for /radin-record or any ask to save something for later, even a vague one ("add the findings"): scan the whole session.
radin-doctor
Check that radin's install under /.claude is complete and its companion tools are reachable.
radin-do
Record one ad-hoc prompt as a backlog entry, then execute just that task. Use for /radin-do .
radin-stats
Show the stats/gain output of every companion tool that ships one, side by side.
radin-batch
Work backlog tasks via sub-agents, prioritized, one commit each; asks whether to plan each task first. Use for "work through my backlog", "skip planning", or name an epic or task to run only those.
designing-interfaces
Creates a design system for software with a UI. Use when a project has a user interface and architecture is confirmed — whether creating from scratch or extracting patterns from existing code.