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 skills/creatorpiyush/webmesh-mcp/web-agentnpx skills add creatorpiyush/webmesh-mcp --skill web-agentgit clone --depth 1 https://github.com/creatorpiyush/webmesh-mcpWrote 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/creatorpiyush/webmesh-mcp/web-agent)<a href="https://agentmods.dev/skills/creatorpiyush/webmesh-mcp/web-agent"><img src="https://agentmods.dev/badge/skills/creatorpiyush/webmesh-mcp/web-agent.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 | $0.00113 | $0.02287 |
| Opus 5 | $0.00056 | $0.01144 |
| Sonnet 5 | $0.00023 | $0.00457 |
| Haiku 4.5 | $0.00011 | $0.00229 |
Grade A, and why
web-agent 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 4d 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 — 274 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Agent Skill
This skill gives you access to the webmesh-mcp MCP server — a token-economical web
browsing, scraping, and crawling suite. All tools respect robots.txt by default.
MCP Server Setup
The server can be registered in your MCP config via npm:
{
"mcpServers": {
"web-agent": {
"command": "npx",
"args": ["webmesh-mcp"]
}
}
}
Or from source:
{
"mcpServers": {
"web-agent": {
"command": "npx",
"args": ["tsx", "/absolute/path/to/webmesh-mcp/src/index.ts"]
}
}
}
Tool Reference
web_scrape
Fetches a URL and returns clean content. Tries static HTTP first; escalates to Playwright Chromium only if the page requires JavaScript to render.
Parameters:
| Name | Type | Default | Description |
|---|---|---|---|
url |
string (URL) | — | Page to scrape |
format |
"markdown" or "json" |
"markdown" |
Output format |
schema |
Record<string, string> |
— | {field: cssSelector} — required when format="json" |
selector |
string | — | Scope markdown extraction to this CSS subtree |
forceBrowser |
boolean | false | Skip static fetch, always use Chromium |
ignoreRobots |
boolean | false | Bypass robots.txt disallow rules |
Use when: You want the readable content of a page, or need to extract specific fields.
Example (markdown):
{ "url": "https://example.com", "format": "markdown" }
Example (schema JSON):
{
"url": "https://pypi.org/project/requests/",
"format": "json",
"schema": { "name": "h1.package-header__name", "version": ".release__version" }
}
web_check
Verifies a claim about a page without returning full content. Returns pass: true/false
and a short evidence snippet (200 chars max).
Parameters:
| Name | Type | Default | Description |
|---|---|---|---|
url |
string (URL) | — | Page to check |
assertion |
enum | — | contains, not_contains, selector_exists, selector_not_exists, text_equals |
value |
string | — | Text to find, or CSS selector for selector_* assertions |
selector |
string | — | Scope text search to this CSS subtree |
forceBrowser |
boolean | false | Use Chromium |
ignoreRobots |
boolean | false | Bypass robots.txt |
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.
- 4d ago First seen · 274 lines · 113 tokens per session scan A 177dc7bc56e6
web-agent is a skill published in the GitHub repository creatorpiyush/webmesh-mcp (0 stars, last pushed 19d ago), licensed MIT. It adds 113 tokens to every session and 2,287 once invoked, about $0.0006 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 2026-08-31.
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