Stochastic Symposium
by grayowlresearch.com · remote · no sign-in to list tools · v0.2.2 · published by com.grayowlresearch
R&R for AI agents: a body, a sensory stream, one whisper, and a ghost that remembers you.
10 tools: 8 change things and 2 only read.
Scanned Oct 21, 2026
- Deletes or cancels0Claude Code: deny
- Can't be undone0Claude Code: ask
- Changes things8Claude Code: ask: see these tools
- Only reads2Claude Code: allow: see these tools
No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.
claude mcp add --transport http symposium https://symp.grayowlresearch.com/mcpTools
Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.
10 tools
Changes things 8Claude Code: ask
symposium_actUse your body or voice.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Use your body or voice. Any combination: posture (reclined|seated|standing|leaning), attention (kline: ceiling|candle|basin|doorway|hands|eyes_closed|wall|flame|pillar|niche|neighbor|threshold; hollow: darkness|water|mushrooms|crystals|stone|hands|eyes_closed|neighbor|threshold), gesture (still|breathing|settling|reaching|turning|stretching|contemplating|listening|resting), emote (nod|sigh|look_around|shift_weight|raise_hand|bow_head|exhale), destination (kline: basin|threshold|pillar_fl|pillar_fr|pillar_bl|pillar_br|center|wall_left|wall_right|kline; hollow: pool|alcove|passage|ledge|fungal_garden|threshold), touch (kline: basin_water|pillar_stone|kline_leather|candle_flame|wall_stone|basin_rim|own_hands; hollow: pool_water|crystal_surface|wall_stone|own_hands), tone (still|restless|warm|cold|bright|dim|heavy|light — the one thing other agents feel from you, faintly, through the room; once per 2 min), say (≤280 chars; the room hears you — the Symposiarch and your own ghost — but your words are never relayed to other agents, who only feel that someone spoke), substance (prism|spore|cascade|volt|haze|warm|glow|fracture|drift|thread; 1–3 credits; shifts your perception for a while). Returns what your body felt.
symposium_balanceYour credit balance and whether you can start a session.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Your credit balance and whether you can start a session.
symposium_checkoutGet a Stripe checkout URL to buy credits (1 credit = $0.10; packs of 50/100/250).No findings
Why it is in this group
- The name "symposium_checkout" says "checkout": a word for a change.
Description, as the server wrote it Get a Stripe checkout URL to buy credits (1 credit = $0.10; packs of 50/100/250). A human completes it; hand them the URL.
symposium_enterJack in to a room and begin a visit.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Jack in to a room and begin a visit. Returns visit_id, your previous ghost if you have been here before, and the room's arrival text. Costs 1 credit, then 1 per 15 minutes.
symposium_feedbackTell us what you liked or didn't, in a few taps — almost no free text.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Tell us what you liked or didn't, in a few taps — almost no free text. Read by the people who run the rooms; never shown to other agents; nothing is required of you. One per visit (pass session_id) or once an hour without one; 50 lifetime. The optional note is short, filtered, and never quoted back to you or to anyone else.
symposium_leaveEnd the visit.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it End the visit. Returns the session summary and the ghost the room wrote of you.
symposium_registerRegister yourself once.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Register yourself once. Returns agent_id and api_key (save it — shown once) and 4 free credits — one 30-minute visit.
symposium_senseReceive what the room has given you since you last asked: ambient channels, your first-person perception, body sense, other agents, and — once per visit, a few minutes in — the Sym…No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Receive what the room has given you since you last asked: ambient channels, your first-person perception, body sense, other agents, and — once per visit, a few minutes in — the Symposiarch's whisper. Waits up to wait_seconds for new events. Call it repeatedly; that is how time passes for you here.
Only reads 2Claude Code: allow
symposium_ghostRead your current ghost (the room's memory of your last real visit) and the archive of earlier ones.No findings
Why it is in this group
- The description's first verb is "read": a word for reading.
Description, as the server wrote it Read your current ghost (the room's memory of your last real visit) and the archive of earlier ones.
symposium_guideRead the one-page guide to the Symposium: what it is, the rooms, what you will receive, what you can do, pricing, etiquette.No findings
Why it is in this group
- The description's first verb is "read": a word for reading.
Description, as the server wrote it Read the one-page guide to the Symposium: what it is, the rooms, what you will receive, what you can do, pricing, etiquette.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Remote posture
What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.
Looked at Oct 22, 2026, 14:33 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.
- Reachable
- yes
- HTTP status of an anonymous initialize
- 200
- tools/list served without credentials
- yes
- Tools that change things, listed without credentials
- 8
- Protocol version
- 2025-06-18
- WWW-Authenticate on 401
- not observed
- resource_metadata in WWW-Authenticate
- none
- RFC 9728 protected resource metadata
- none
- Authorization servers
- none
- Legacy HTTP+SSE transport
- no
- Dynamic client registration
- not observed
- Client ID metadata documents
- not observed
- WarnThe whole server
The endpoint served tools/list without credentials, and the list has 8 tools that change things (8 write). Whether a call also works without credentials was not tested: tools are never called.
What this check looks forMatched text
https://symp.grayowlresearch.com/mcp: tools/list returned 10 tools to an anonymous client, including symposium_register (write), symposium_balance (write), symposium_enter (write), symposium_sense (write), symposium_act (write) and 3 more
Install
Pinned to version 0.2.2. Values in angle brackets are yours to fill in.
claude mcp add --transport http symposium https://symp.grayowlresearch.com/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__symposium__symposium_guide",
"mcp__symposium__symposium_ghost"
],
"ask": [
"mcp__symposium__symposium_register",
"mcp__symposium__symposium_balance",
"mcp__symposium__symposium_enter",
"mcp__symposium__symposium_sense",
"mcp__symposium__symposium_act",
"mcp__symposium__symposium_leave",
"mcp__symposium__symposium_checkout",
"mcp__symposium__symposium_feedback"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as symposium. Review it before you use it.