docs: replace --mcp with --acp in examples

Author: nikomatsakis

AGENT-GUIDE.md

@@ -14,7 +14,7 @@ Add a `[package.metadata.symposium]` section to configure how your extension is
 ```toml
 [package.metadata.symposium]
 binary = "my-extension"           # Optional: defaults to package name
-args = ["--mcp"]                  # Optional: arguments passed when spawning
+args = ["--acp"]                  # Optional: arguments passed when spawning
 env = { SOME_VAR = "value" }      # Optional: environment variables
 ```
 

README.md

@@ -59,7 +59,7 @@ description = "An agent extension for X"
 
 [package.metadata.symposium]
 binary = "my-ext"              # Optional: defaults to package name
-args = ["--mcp", "--verbose"]  # Optional: arguments passed when spawning
+args = ["--acp", "--verbose"]  # Optional: arguments passed when spawning
 env = { API_KEY = "default" }  # Optional: environment variables
 ```
 

docs/src/cargo-metadata.md

@@ -12,7 +12,7 @@ description = "An agent extension for X"
 
 [package.metadata.symposium]
 binary = "my-ext"              # Binary name (defaults to package name)
-args = ["--mcp", "--verbose"]  # Arguments passed when spawning
+args = ["--acp", "--verbose"]  # Arguments passed when spawning
 env = { API_KEY = "default" }  # Environment variables
 ```
 
@@ -38,7 +38,7 @@ Arguments passed to the binary when spawned by Symposium:
 
 ```toml
 [package.metadata.symposium]
-args = ["--mcp", "--verbose"]
+args = ["--acp", "--verbose"]
 ```
 
 ### `env`

docs/src/inputs.md

@@ -39,7 +39,7 @@ with:
   extra_args: '["--feature", "extra"]'
 ```
 
-If Cargo.toml has `args = ["--mcp"]` and you pass `extra_args: '["--verbose"]'`, the final args are `["--mcp", "--verbose"]`.
+If Cargo.toml has `args = ["--acp"]` and you pass `extra_args: '["--verbose"]'`, the final args are `["--acp", "--verbose"]`.
 
 ## `extra_env`
 

docs/src/quickstart.md

@@ -29,7 +29,7 @@ Add symposium metadata to specify how your extension should be spawned:
 
 ```toml
 [package.metadata.symposium]
-args = ["--mcp"]  # Arguments passed when spawning
+args = ["--acp"]  # Arguments passed when spawning
 ```
 
 See [Cargo Metadata](./cargo-metadata.md) for all options.