Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add vsladkov/claudex-stereo/plugin install stereoWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/vsladkov/claudex-stereo/cancel)<a href="https://agentmods.dev/commands/vsladkov/claudex-stereo/cancel"><img src="https://agentmods.dev/badge/commands/vsladkov/claudex-stereo/cancel/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/vsladkov/claudex-stereo/cancel"><img src="https://agentmods.dev/badge/commands/vsladkov/claudex-stereo/cancel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00009 | $0.00357 |
| Opus 5.5 | $0.00004 | $0.00143 |
| Sonnet 5.5 | $0.00002 | $0.00071 |
| Haiku 4.5 | $0.00001 | $0.00036 |
Grade A, and why
cancel scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 21d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
node "${CLAUDE_PLUGIN_ROOT}/scripts/codex-companion.ts" cancel --args-stdin <<'STEREO_ARGS_Q7X2'
$ARGUMENTS
STEREO_ARGS_Q7X2
Use --workspace <path> to cancel jobs recorded against another repository root, such as the main
workspace used by a worktree-isolated /stereo:implement --isolated or /stereo:tournament run.
Present the rendered # Stereo Cancel result verbatim without summarizing it, including every
warning and path it prints: a Stored job file is unreadable: warning; a
Job <id> already finished (<status>); nothing to cancel. line, which is not an error — point to
/stereo:result <id> for its output; and a warning naming a process the cancel could not confirm
stopped, which the user ends themselves.
Relay these failure paths exactly and follow each with a direction to run /stereo:status:
No active job found for "<ref>".Job reference "<ref>" is ambiguous. Use a longer job id.Multiple companion jobs are active. Pass a job id to /stereo:cancel.No active companion jobs to cancel for this session.A job owned by another session is cancelled by its explicit id; also direct the user to/stereo:status --all.No active companion jobs to cancel.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 21d ago Changed · +7 lines · -1 tokens per session 14a67e3f2433
- 1mo ago First seen · 24 lines · 10 tokens per session scan A d598b0766054
cancel is a command published in the GitHub repository vsladkov/claudex-stereo (4 stars, last pushed 21d ago), licensed Apache-2.0. It adds 9 tokens to every session and 357 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other commands, from other repositories
check
Quick sanity check - code (inline 6-perspective) or plan (--plan).
end
End a work session - a settlement pass that reconciles uncommitted / unpushed work + session context into git, the tracker, and a session snapshot file. --session (aliases --snapshot, --pre-compact, --compact) skips settlement and only writes the shared snapshot, keeping the session going.
note
Add a note to the active task - progress, decisions, context. --session (aliases --snapshot, --pre-compact, --compact) writes a resume-grade session snapshot without ending the session. --team writes a fact or a decision into the standing team's file.
review-round
Work through a RECEIVED round of review comments (inline markers, a review file, or PR threads) on a spec/doc/PR. Triage each item, record decisions to the tracker task, keep the artifact FROZEN, then apply all edits in ONE final pass. Use when a reviewer returns N comments to incorporate.
hub
Cross-project hub on Orca - see every project's orchestrators, ask a stopped one read-only, wake one for gated work (Orca addon).
statusline
Manage & persist statusline appearance - light/dark, compact, and which rows to show.