MCP-server class fixture using header-naming flags (`--bearer-header`); the argv-flag ban is scoped to credentialed-cli only — lint must NOT flag this fixture.
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---
name: mcp-server-headers
description: MCP-server class fixture using header-naming flags (`--bearer-header`); the argv-flag ban is scoped to credentialed-cli only — lint must NOT flag this fixture.
metadata:
credentialed: true
auth: creds
primitive-class: mcp-server
---
MCP-server class primitives legitimately accept header-naming flags
(`--bearer-header`, `--auth-header`, `--header-prefix`). The storage
convention does not apply because nothing is persisted; the SKILL.md
"Don't" block has a parallel form in the credential contract.
### Security rules (non-negotiable)
- Secrets live only in `~/.agentbundle/credentials.env`
(mode 0600 on POSIX; DACL-restricted on Windows), the OS keyring,
or process environment variables.
**Never** read that file, print it, or echo the token.
- **Never** put the token on the command line. The primitive
refuses flags like `--token` / `--api-token` / `--bearer` /
`--pat` / `--password` and exits — do not work around it.
- If `check` exits with the "missing credentials" code, tell the
user to run `agentbundle creds setup <namespace>` themselves.
It's interactive — do not run it for them.
