The command for each task, in each harness. Pick what you are working with, then read across: commands you type in your shell or a script and commands you type inside an open session are listed separately. Commands for renaming sessions are on Thread naming and importing from another harness on Migration.
From your shell
Commands you run in a terminal or script, outside a session.
| Task | Codex CLIchecked at 0.162.1 | Claude Codechecked at 2.1.296 | Cursor Agentchecked at 2026.10.12-d47ca18 | OpenCode 2.xchecked at 2.0.28 | pichecked at 1.2.0 |
|---|---|---|---|---|---|
| Use | |||||
| Show details | — | — | — |
Show usage statistics. | — |
Inside a session
Slash commands you type into an open session.
| Task | Codex CLIchecked at 0.162.1 | Claude Codechecked at 2.1.296 | Cursor Agentchecked at 2026.10.12-d47ca18 | OpenCode 2.xchecked at 2.0.28 | pichecked at 1.2.0 |
|---|---|---|---|---|---|
| Set up | |||||
| Configure | — | Set up usage credits, or request them from an admin, when a limit is hit. 1 notePreviously /extra-usage. | — | — | — |
| Use | |||||
| Show details |
View account usage analytics, or redeem a usage-limit reset. 1 noteRedeeming consumes a reset. Requires ChatGPT sign-in. | also /cost, /stats Show session cost, plan usage limits and activity stats. 1 note/stats opens on the Stats tab. | Show plan usage, on-demand spend and the billing-cycle reset date. | Open the usage statistics view. | Show the session's file, id, message count, token usage and cost. 1 noteThe only usage view; there is no shell usage command. |
Notes and sources
Codex CLI
- The shell CLI installs and removes plugins but has no enable, disable, update or validate command; the /plugins browser can switch plugins on or off.
- --worktree starts new sessions in a managed Git worktree and works with codex fork given an explicit session; resume, queue, archive, unarchive and delete reject it at run time.
- MCP protocol capabilities are recorded in mcp.json; these records cover the operator commands.
- codex-cli-0.162.1 help observation, live observation, checked 2026-10-14
- Codex developer commands, Documentation, checked 2026-10-15
Claude Code
- Some plugin authoring and evaluation commands are newer than the public reference, so each command keeps its live help evidence.
- Plugin installs that run a marketplace-declared command need --accept-command <sha256> without a TTY.
- Interactive commands are recorded separately from their shell equivalents.
- 2.1.304 adds /auto-mode-setup across Bedrock, Vertex, Foundry, Claude apps gateway and telemetry-disabled sessions; help output was corrected for several flags, and plugin validate no longer predicts where mod hooks run. Existing command help observations retain their versions.
- claude plugin can also be written claude plugins.
- claude-cli-2.1.296 help observation, live observation, checked 2026-10-14
- Claude Code MCP, Documentation, checked 2026-10-15
- Claude Code plugin CLI reference, Documentation, checked 2026-10-14
- Claude Code: Manage multiple agents with agent view, Documentation, checked 2026-10-15
- Claude Code commands, Documentation, checked 2026-10-15
- Claude Code CLI reference, Documentation, checked 2026-10-15
- Claude Code sessions, Documentation, checked 2026-10-15
- Claude Code costs and usage, Documentation, checked 2026-10-15
- Claude Code 2.1.304 published changes; no runtime probe, Documentation, checked 2026-10-21
Cursor Agent
- Nested --help at this version prints the top-level help, so subcommand syntax for plugin marketplaces and in-session commands comes from the docs and changelog.
- agent env, agent cloud and agent automations exist behind feature flags and are not recorded.
- cursor-agent-2026.10.12 help observation, live observation, checked 2026-10-14
- Cursor CLI MCP, Documentation, checked 2026-10-15
- Cursor CLI changelog, Documentation, checked 2026-10-15
- Cursor CLI overview, Documentation, checked 2026-10-15
- Cursor CLI parameters, Documentation, checked 2026-10-15
- Cursor self-hosted pools, Documentation, checked 2026-10-14
OpenCode 2.x
- @opencode/cli 2.x runs one shared background service per user, managed with opencode service. Session sharing is not supported yet.
- 2.1 restores archiving through client.session.update({ sessionID, archived: true|false }) and archive filtering in client.session.list. These are SDK/HTTP operations, not newly claimed shell subcommands.
- 2.1 adds editable saved-grant action/resource patterns through client.permission.saved.update / PATCH /api/permission/saved/:id. Action is a tool/action name, not an allow/deny effect.
- 2.1.1 fixes provider reasoning variant generation after package normalization; other command observations retain their earlier help/source versions.
- opencode-2.0.28 help observation, live observation, checked 2026-10-14
- OpenCode v2 CLI commands, Documentation, checked 2026-10-14
- OpenCode 2.0.29 source, Source code, checked 2026-10-15
pi
- Shell MCP commands always use the built-in MCP and do not load extensions. In-session behaviour is documented, not live-probed.
- pi-1.2.0 help observation, live observation, checked 2026-10-14
- pi 1.2.0 documentation, Documentation, checked 2026-10-15