Struct HarnessAdapter 

pub struct HarnessAdapter {
    pub name: &'static str,
    pub paths_fn: fn() -> Vec<PathBuf>,
    pub upsert_fn: fn(&Path, &str, &Value) -> Result<bool>,
    pub remove_fn: fn(&Path, &str) -> Result<bool>,
}

One harness this build can register the wire MCP server with.

Fields

name: &'static str

Operator-facing label printed by wire setup.

paths_fn: fn() -> Vec<PathBuf>

Returns every probable config path on the running platform. May be empty when the host isn’t shipped for the current OS.

upsert_fn: fn(&Path, &str, &Value) -> Result<bool>

Atomic merge of (server_name, entry) into the host’s config file at path. Returns Ok(true) on change, Ok(false) on no-op (entry already exact).

remove_fn: fn(&Path, &str) -> Result<bool>

Remove the (server_name) entry from the host’s config at path. Returns Ok(true) on change, Ok(false) if the file is absent or the entry wasn’t present (idempotent). MUST NOT create a missing file.