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 w-winter/dot314 --skill surfgit clone --depth 1 https://github.com/w-winter/dot314Wrote 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/w-winter/dot314/surf)<a href="https://agentmods.dev/skills/w-winter/dot314/surf"><img src="https://agentmods.dev/badge/skills/w-winter/dot314/surf/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/w-winter/dot314/surf"><img src="https://agentmods.dev/badge/skills/w-winter/dot314/surf.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 6 findings, up to high
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 →
- high Privilege Escalation · line 24 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Excessive Agency · line 82 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
- high Excessive Agency · line 127 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
- high Excessive Agency · line 163 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
- high Excessive Agency · line 174 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
- medium Rogue Agent · line 253 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00060 | $0.07358 |
| Opus 5.5 | $0.00024 | $0.02943 |
| Sonnet 5.5 | $0.00012 | $0.01472 |
| Haiku 4.5 | $0.00006 | $0.00736 |
Grade A, and why
surf scanned grade A 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
surf network.curl --id "req-123" # Generate curl command How it starts
The opening of the file, as written. The whole thing — 723 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Surf Browser Automation
Control Chrome browser via CLI or Unix socket.
Native Host / Socket Notes
For WSL2 with Windows Chrome, run surf install <extension-id> inside WSL2. Surf detects WSL2 and writes the Windows-side native messaging manifest plus a wrapper that launches the WSL host. Use surf install <extension-id> --target linux only for Linux browsers running inside WSLg.
On macOS, Chrome reads the native messaging manifest at ~/Library/Application Support/Google/Chrome/NativeMessagingHosts/surf.browser.host.json. If native messaging fails, confirm that file exists, its allowed_origins extension ID matches chrome://extensions, then rerun surf install <extension-id>, restart Chrome, reload the extension, and inspect the extension service-worker console.
If a command reports Socket connect failed, run surf doctor first, then check the Attempted socket: line. Default sockets are /tmp/surf.sock on macOS/Linux/WSL2 and //./pipe/surf on Windows. If SURF_SOCKET is set, the browser-launched host and the shell running surf must use the same value.
Remote Surf
Remote clients require a per-client credential; Tailnet reachability alone is not authorization. On the POSIX browser host, authorize the client before installing the listener:
surf remote authorize agent-macbook --output ~/agent-macbook.surf-credential.json
surf install <extension-id> --listen 100.101.102.103:4321
surf remote list
Move the mode-0600 credential to the client through a secure channel. It grants full trusted Surf authority. Use it explicitly or through SURF_REMOTE and SURF_REMOTE_CREDENTIAL:
surf --remote 100.101.102.103:4321 \
--remote-credential ~/.config/surf/agent-macbook.json \
page.read
surf remote revoke agent-macbook # Run on the browser host
Remote paths are client-local by default. local:./file is explicit client-local syntax; only remote:/absolute/path accesses the browser host directly. Remote transfer supports one upload or ChatGPT/Gemini input and one screenshot, network-export, or Gemini image output. Limits are 256 MiB per file, 512 MiB and 32 files per connection, and 256 KiB decoded chunks. record, aistudio.build, smoke screenshot directories, directories, and multi-file inputs are not supported remotely. Successful action screenshots and failure --auto-capture diagnostics are transferred back to client-local paths.
What ships with it
1 file 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 · 723 lines · 60 tokens per session scan A 3593b8a4ca01
surf is a skill published in the GitHub repository w-winter/dot314 (139 stars, last pushed 2d ago), licensed MIT. It adds 60 tokens to every session and 7,358 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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