Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add akougkas/zulipchat-mcp --skill zulipchat-session-operatorgit clone --depth 1 https://github.com/akougkas/zulipchat-mcpWrote 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/skills/akougkas/zulipchat-mcp/zulipchat-session-operator)<a href="https://agentmods.dev/skills/akougkas/zulipchat-mcp/zulipchat-session-operator"><img src="https://agentmods.dev/badge/skills/akougkas/zulipchat-mcp/zulipchat-session-operator/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/skills/akougkas/zulipchat-mcp/zulipchat-session-operator"><img src="https://agentmods.dev/badge/skills/akougkas/zulipchat-mcp/zulipchat-session-operator.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 | $0.00033 | $0.00414 |
| Opus 5.5 | $0.00013 | $0.00166 |
| Sonnet 5.5 | $0.00007 | $0.00083 |
| Haiku 4.5 | $0.00003 | $0.00041 |
Grade A, and why
zulipchat-session-operator 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
Use the bound agent_id and session_id from the host context or from
register_agent and ensure_agent_session. Claude hooks may expose these as
ZULIPCHAT_AGENT_ID and ZULIPCHAT_SESSION_ID; other hosts can retain tool results.
Never infer ownership from message text or a request ID alone.
Use agent_message for useful milestone, blocked, failure, completion, and
handoff updates. Poll poll_agent_events between substantial steps when the
extended tool is exposed. Preserve the event cursor to avoid repeating commands.
Honor /status, /pause, /resume, /cancel, and /handoff from the verified
owner. A canceled task stops; a resumed task retains its original objective.
MCP delivers these control events; the coding host must apply them. It does not
launch an agent or interrupt running local tools. Report a pause or cancellation
as requested until the host confirms that transition; do not claim enforcement
from event receipt alone.
For approval, persist a concrete request with request_user_input, retain its
ID, and use wait_for_response for that request. Only an immutable decision
for the matching request and owner/session is actionable. A wait timeout is not
an approval. Keep the coding host's existing permission checks in effect.
For owner questions, advertise /reply REQUEST_ID YOUR ANSWER. For approval
requests use /approve REQUEST_ID or /deny REQUEST_ID. Poll with
wait_for_response(request_id=..., timeout_seconds=30) and retain the same
request ID after a timeout. Resume polling instead of posting a duplicate prompt.
For replayable steering, use poll_agent_events(auto_ack=False, session_id=...)
and acknowledge consumed event IDs on the next poll with ack_event_ids.
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 · -18 lines · +2 tokens per session 797612718d4a
- 2mo ago First seen · 51 lines · 31 tokens per session scan A a8121725fcf6
zulipchat-session-operator is a skill published in the GitHub repository akougkas/zulipchat-mcp (33 stars, last pushed 21d ago), licensed MIT. It adds 33 tokens to every session and 414 once invoked, about $0.0001 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 2026-08-30.
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