Read the contents of a file. Supports text files and images (jpg, png, gif, webp, bmp). Images are sent as attachments. For text files, output is truncated to 2000 lines or 50KB (whichever is hit first). Use offset/limit for large files. When you need the full file, continue with offset until complete.

Apply a patch to one or more files using the apply_patch format. The input should include *** Begin Patch and *** End Patch markers.

Execute shell commands with background continuation for work that starts now. Use yieldMs/background to continue later via process tool. For long-running work started now, rely on automatic completion wake when it is enabled and the command emits output or fails; otherwise use process to confirm completion. Use process whenever you need logs, status, input, or intervention. Use pty=true for TTY-required commands (terminal UIs, coding agents).

Manage running exec sessions for commands already started: list, poll, log, write, send-keys, submit, paste, kill. Use poll/log when you need status, logs, quiet-success confirmation, or completion confirmation when automatic completion wake is unavailable. Use poll/log also for input-wait hints. Use write/send-keys/submit/paste/kill for input or intervention.

Discover local OpenClaw Skills available to ChatGPT Web. Pass a natural-language task description in query to get a small semantic top-k with descriptions. Without query, returns the compact names-only live catalog. Only currently eligible and model-visible Skills are surfaced.

Read one currently eligible/model-visible OpenClaw Skill by its name or skillKey. Use after skills_list identifies a likely match. This tool does not accept filesystem paths.