The Agent Skills Directory

[EXTERNAL_DOWNLOADS]: The skill requires downloading and installing the travelclick-pp-cli binary from the author's GitHub repository (github.com/mvanhorn/printing-press-library) or via a Node package (@mvanhorn/printing-press-library).
[COMMAND_EXECUTION]: The skill operates by executing shell commands using the local travelclick-pp-cli binary to search for hotel availability and manage local settings.
[DATA_EXFILTRATION]: The CLI tool supports a --deliver webhook:<url> flag, which allows users or agents to POST command output to a remote URL, representing a data routing capability.
[INDIRECT_PROMPT_INJECTION]: The skill implements a 'learning loop' via recall and teach commands that ingest user queries into a local SQLite database to synthesize command playbooks.
Ingestion points: User queries are captured and stored by the recall and teach commands in SKILL.md.
Boundary markers: The skill relies on instructions for the agent to manually strip PII; no automated delimiters or escaping for stored playbook logic are described.
Capability inventory: The skill can perform network API calls, write to a local database, and deliver data to external webhooks.
Sanitization: The documentation notes that the CLI scans for common email and phone patterns in queries but does not block them.

pp-travelclick