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 gaelic-ghost/socket --skill build-falco-web-appgit clone --depth 1 https://github.com/gaelic-ghost/socketWrote 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/gaelic-ghost/socket/build-falco-web-app)<a href="https://agentmods.dev/skills/gaelic-ghost/socket/build-falco-web-app"><img src="https://agentmods.dev/badge/skills/gaelic-ghost/socket/build-falco-web-app/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/gaelic-ghost/socket/build-falco-web-app"><img src="https://agentmods.dev/badge/skills/gaelic-ghost/socket/build-falco-web-app.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 | $0.00042 | $0.00422 |
| Opus 5.5 | $0.00017 | $0.00169 |
| Sonnet 5.5 | $0.00008 | $0.00084 |
| Haiku 4.5 | $0.00004 | $0.00042 |
Grade A, and why
build-falco-web-app 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.
What it actually says
Build Falco Web App
Use Falco for its lightweight functional HTTP surface while leaving business behavior as ordinary, testable F# code.
Source Check
Read existing routes, the web host, project references, tests, and configuration before editing. Consult Falco's source and documentation and ASP.NET Core documentation for current package behavior.
Workflow
- Confirm Falco is the selected framework; otherwise start with
dotnet:choose-fsharp-web-framework. - Define route handlers around one request job. Parse input, call a domain function, then write one explicit response shape.
- Keep routing declarative and readable. Split route groups by feature instead of building one mutable registration surface.
- Use the existing ASP.NET Core host for configuration, dependency registration, authentication, authorization, logging, and rate or upload limits. Do not hide those platform concerns in unrelated response helpers.
- Treat HTML/view code as presentation. Keep it separate from request parsing, authorization, and persistence behavior.
- Test domain modules without a host, then add endpoint or integration coverage for routes, input validation, auth decisions, and response contracts.
Validation
Run the repository's targeted commands. If it has none, use:
dotnet build <web-project.fsproj>
dotnet test <test-project.fsproj>
Boundaries
- Preserve F# compile order and explicit task or async boundaries.
- Do not translate C# controller or service patterns mechanically into Falco.
- For Azure resources, hosting, monitoring, identity, or deployment, use the official Azure Skills handoff rather than inventing provider commands here.
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 · 49 lines · 42 tokens per session scan A 624d0200ec93
build-falco-web-app is a skill published in the GitHub repository gaelic-ghost/socket (7 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 42 tokens to every session and 422 once invoked, about $0.0002 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 2026-09-03.
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