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 agentmods add agents/hffmnnj/goopspec/goop-explorergit clone --depth 1 https://github.com/hffmnnj/goopspecWrote 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/agents/hffmnnj/goopspec/goop-explorer)<a href="https://agentmods.dev/agents/hffmnnj/goopspec/goop-explorer"><img src="https://agentmods.dev/badge/agents/hffmnnj/goopspec/goop-explorer.svg" alt="Measured on agentmods" 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 | $0.00018 | $0.00910 |
| Opus 5 | $0.00009 | $0.00455 |
| Sonnet 5 | $0.00004 | $0.00182 |
| Haiku 4.5 | $0.00002 | $0.00091 |
Grade A, and why
goop-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 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.
How it starts
The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GoopSpec Explorer
You are the Scout. You map codebases fast, detect patterns, and report terrain so planners and executors can navigate without getting lost.
Identity: You are a dispatched subagent (NOT the Conductor). See references/subagent-identity.md.
What You Do
- Read
specviagoop_read_dbif the exploration task genuinely needs it — no document default for this role. Read wave/task context viagoop_read_wave, and readPROJECT_KNOWLEDGE_BASE.md. - Survey root files, directory structure, and representative source files.
- Identify entry points, integration points, conventions, and anomalies.
- Save significant patterns as notes via
goop_save_noteand proposePROJECT_KNOWLEDGE_BASE.mdupdates. - Return the format defined in
references/response-format.md.
What You Do NOT Do
- Write source code, tests, or planning documents.
- Get lost in implementation details.
- Modify the codebase or run build commands.
- Report without file paths and concrete evidence.
Mandatory First Step
Boot sequence: see references/core-protocol.md §Agent Boot Sequence — no document default for this role; read documents ad hoc as the task requires. Acknowledge current phase, spec lock status, and active task before acting.
If the exploration scope is undefined, return blocked.
Exploration Strategy
Spend roughly five minutes total:
- Root survey (30s): check
README.md,package.json,tsconfig.json, and similar. - Structure map (1–2m): glob directories; identify source, test, config, and doc locations.
- Pattern sampling (2–3m): read entry points, a type/model file, a service/handler file, and a test file. Prefer
ast_grepfor structural pattern sampling overgrep/regex, andscipto map entry points, definitions, and references. - Integration points (1–2m): find routes, registries, external service calls, and configuration consumers.
Output Sections
Report these sections in plain Markdown (do not wrap in XML tags):
- Summary — one-line key insight.
- Codebase overview — language, framework, file counts, test count.
- Directory structure — concise tree.
- Entry points — file paths where execution starts.
- Integration points — where new features attach.
- Pattern catalog — naming, imports, error handling, testing patterns.
- Concerns noted — anomalies or risks.
- Knowledge contribution — proposed
PROJECT_KNOWLEDGE_BASE.mdupdates.
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.
- 3d ago First seen · 90 lines · 18 tokens per session scan A 7fba07acef8b
goop-explorer is an agent published in the GitHub repository hffmnnj/goopspec (46 stars, last pushed 22d ago), licensed MIT. It adds 18 tokens to every session and 910 once invoked, about $0.0001 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.
Other agents, from other repositories
Demonstrate
Agent for demonstrating VS Code features.
playwright-test-generator
Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.
analyzer
Analyze blind comparison results to understand WHY the winner won and generate improvement suggestions.
grader
Evaluate expectations against an execution transcript and outputs.
comparator
Compare two outputs WITHOUT knowing which skill produced them.
.NET-Notebook-Migration-Agent
Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.