The Agent Skills Directory

[COMMAND_EXECUTION]: Uses sudo with system package managers (apt-get, dnf) to install Java 17, which is a required dependency for the Signal CLI.
[COMMAND_EXECUTION]: Manages the application daemon using platform-specific service managers (launchctl on macOS and systemctl on Linux) to ensure the Signal integration runs as a background process.
[EXTERNAL_DOWNLOADS]: Fetches the signal-cli binary and associated version metadata from GitHub's official API and releases pages.
[REMOTE_CODE_EXECUTION]: Executes a Python snippet via the command line to parse version information from a GitHub API response. While this involves piping data to an interpreter, it is a localized operation for configuration purposes rather than the execution of remote scripts.
[PROMPT_INJECTION]: The skill establishes a communication channel that ingests data from Signal messages, creating a surface for indirect prompt injection.
Ingestion points: Incoming messages from Signal users are received via the signal-cli daemon and processed by the system (referenced in src/channels/signal.ts).
Boundary markers: The setup instructions do not detail the use of specific delimiters or markers to separate external user input from system instructions.
Capability inventory: The environment allows for file system writes to project source directories, shell command execution via binary management, and local database modifications via sqlite3.
Sanitization: No specific input sanitization or validation steps for incoming messaging data are described in the provided configuration files.

add-signal