File Path Check is answering right now. Last checked 12 min ago. It exposes 30 tools. Last commit 23 Sep 2026.
Check whether a path looks safe. No disk access.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 September 2026. No other catalogue keeps this.
Today is the operative word: we check File Path Check every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.
claude mcp add file-path-ok --transport http https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/file-path-ok/mcp
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/file-path-ok/mcp
[mcp_servers.file-path-ok]
url = "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/file-path-ok/mcp"
{
"mcpServers": {
"file-path-ok": {
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/file-path-ok/mcp"
}
}
}
{
"servers": {
"file-path-ok": {
"type": "http",
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/file-path-ok/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
agent-ads-index
agent-tool-index
fetch-status
status-catalog
browser-url-ok
calc-eval
citation
compatibility
domain-shape
figma-url-shape
file-path-ok
hn-front-count
geo-hint
github-repo-shape
iana-zones
inspect-robots
jira-key-shape
search-query-len
lib-docs-hint
memory-key-count
normalize-url
people-search-index
playwright-url-ok
think-steps
timezone
utc-time
validate-json
weather-hint
web-fetch
wiki-title-ok
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/file-path-ok/mcp | streamable-http | answering | 68 ms | 12 min ago |
Check whether a git ref name is safe. Name discarded.
HEAD a public URL and say whether it looks like a PDF. Body discarded.
Check how to contact a business website, and whether that contact path actually works.
Check a Notion URL shape. Path discarded.
Whether a zone name looks like DST-aware
Feather magic-byte check, file discarded
Before your agent sets out, ask whether the site will let it in
Check whether a URL can be opened. No browser is launched.
Answers built from our own checks of this server.