git:20260525.5118a5c to git:20260525.2022dd6

1 added, 1 removed. Audit A to A.

---

name: mcp-server-headers

description: MCP-server class fixture using header-naming flags (`--bearer-header`); AC26(b) ban is scoped to credentialed-cli only — lint must NOT flag this fixture.

metadata:

credentialed: true

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 noted in RFC-0006 § 4.

### Security rules (non-negotiable)

- - Secrets live only in `~/.agent-ready/credentials.env`

+ - 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.