MCP, MCP server
io.github.capabilityhostprotocol/capabilities-txt-registry
A simple, open convention for a website to declare what it can do — the capabilities an agent can discover and invoke — at a well-known location.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
action/index.js, line 56
const res = await fetch(src, { headers: { 'User-Agent': 'capabilities-txt-action' } }); - NETWORK_UNNAMED_HOST Low
Calls a fixed host that the description does not name.
action/index.js, line 56
const res = await fetch(src, { headers: { 'User-Agent': 'capabilities-txt-action' } }); - SECRETS_PATH_DOTENV Low
Mentions a .env file.
db/README.md, line 18
vercel env pull .env.local # to develop locally against it - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
app/api/admin/ingest/route.ts, line 28
const admin = process.env.INGEST_ADMIN_TOKEN || '';
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address. can reach yoursite.com. The description does not name that host. can reach api.example.com. The description does not name that host.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
action/index.js, line 56
const res = await fetch(src, { headers: { 'User-Agent': 'capabilities-txt-action' } });
app/page.tsx, line 94
curl -s https://yoursite.com/capabilities.txt | python tools/validate.py -</code></pre>
app/api/generate/route.ts, line 23
const res = await fetch(c, {
Show more
app/components/RegisterButton.tsx, line 12
const res = await fetch('/api/register', {
app/demo/[domain]/ProveWithCHP.tsx, line 34
const res = await fetch('/api/generate-from-site', {
app/demo/[domain]/ProveWithCHP.tsx, line 59
const r = await fetch(`/api/audit/${encodeURIComponent(id)}`);
app/demo/[domain]/ProveWithCHP.tsx, line 72
const r = await fetch(`/api/verify/${encodeURIComponent(id)}`);
app/generate/page.tsx, line 19
const res = await fetch('/api/generate', {
tools/validate.py, line 7
curl -s https://example.com/capabilities.txt | python tools/validate.py -
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
app/api/admin/ingest/route.ts, line 28
const admin = process.env.INGEST_ADMIN_TOKEN || '';
app/api/cron/recheck/route.ts, line 11
const secret = process.env.CRON_SECRET;
db/README.md, line 18
vercel env pull .env.local # to develop locally against it
Show more
app/lib/chp/gateway.ts, line 10
const AGENT_TOKEN = process.env.GATEWAY_AGENT_TOKEN ?? '';
.gitignore, line 11
*.tsbuildinfo
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 1f62caba3f8d. can reach a host that is not written as a fixed address. can reach yoursite.com. The description does not name that host. can reach api.example.com. The description does not name that host. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: 1f62caba3f8df9cff23f046ea1be49ebd0afe5c0
This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.