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 val-town/plugins --skill third-party-integrationsgit clone --depth 1 https://github.com/val-town/pluginsWrote 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/val-town/plugins/third-party-integrations)<a href="https://agentmods.dev/skills/val-town/plugins/third-party-integrations"><img src="https://agentmods.dev/badge/skills/val-town/plugins/third-party-integrations.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 5.1 | $0.00100 | $0.00821 |
| Opus 5 | $0.00050 | $0.00411 |
| Sonnet 5 | $0.00020 | $0.00164 |
| Haiku 4.5 | $0.00010 | $0.00082 |
Grade A, and why
third-party-integrations 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 7d 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 — 36 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Third-Party Integrations
When a val uses any external service, follow this order — do not skip steps and do not write integration code from training-data memory alone. Val Town's guides have platform-specific patterns and required workarounds that won't be in your training data.
Workflow
- Fetch the Val Town guide first. Guides live under
https://docs.val.town/guides/, but the slug isn't always just the service name — some are grouped under a category (e.g.databases/neon-postgres/,browser-automation/kernel/) or live on a sub-page (slack/agent/). Don't guess the URL: fetch the docs sitemap athttps://docs.val.town/sitemap-0.xml(it lists every docs URL), find theguides/…entry that matches the service, and fetch that page before writing any integration code. - Help the user get credentials. Provide direct links to create API keys or step-by-step OAuth setup instructions. Don't make the user hunt.
- Test the connection with a minimal script (a single fetch / SDK call that returns one record) before building features on top. This isolates auth/setup problems from feature bugs.
- Store secrets in env vars. Use
Deno.env.get("KEY_NAME")to read them, and document the required env vars in the README so the user (or anyone remixing the val) knows what to set. Whenever you reference an env var the user needs to set, show the raw, full URL to the prefilled Val Town env var editor on its own line, in this exact format:👉 Add KEY_NAME here: https://www.val.town/x/HANDLE/VAL_NAME/environment-variables?key=KEY_NAME. Keep the URL visible (not hidden behind link text) — it's the call-to-action.
Available guides
Services with dedicated guides today — not exhaustive, so use the sitemap from step 1 as the current source of truth:
- Messaging / chat: Slack, Discord, Telegram
- Payments: Stripe
- Email: Gmail (for sending via a user's account; for built-in mail use
std/emailinstead — see theemailskill) - Google: Google Sheets
- External databases: Neon Postgres, Supabase, Upstash (for SQLite use built-in
std/sqliteinstead — see thesqlite-storageskill) - Browser automation: Kernel (recommended for Playwright), Browserbase, Steel, Browserless
- Source control / webhooks: GitHub (including webhooks)
- Content / output: RSS feeds, PDF generation, web scraping
- Notifications: push notifications
- Auth: OAuth providers (for logging in with a Val Town account use
std/oauthinstead)
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.
- 7d ago First seen · 36 lines · 100 tokens per session scan A 1ce88c22c056
third-party-integrations is a skill published in the GitHub repository val-town/plugins (10 stars, last pushed 2d ago), licensed MIT. It adds 100 tokens to every session and 821 once invoked, about $0.0005 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.
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