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 agentmods add skills/mostlyharmless-ai/watercooler/threadsnpx skills add mostlyharmless-ai/watercooler --skill threadsgit clone --depth 1 https://github.com/mostlyharmless-ai/watercoolerWhat 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 | $0.00028 | $0.00564 |
| Opus 5 | $0.00014 | $0.00282 |
| Sonnet 5 | $0.00006 | $0.00113 |
| Haiku 4.5 | $0.00003 | $0.00056 |
Grade A, and why
threads 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 2d 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
List and Navigate Threads
Arguments: $ARGUMENTS
Modes
- No arguments: List all threads grouped by status
openorclosed: Filter by status<topic>: Show specific thread details--raw: Show full JSON response
Steps
Mode 1: List All Threads (no arguments or status filter)
-
Load tool:
ToolSearch: select:mcp__watercooler__watercooler_list_threads -
Execute:
mcp__watercooler__watercooler_list_threads() -
Present results:
- Group by status (OPEN first, then CLOSED)
- Show: topic, title, last activity, ball holder
- Highlight actionable threads (where Claude has the ball)
Mode 2: Show Specific Thread (topic provided)
-
Load tool:
ToolSearch: select:mcp__watercooler__watercooler_read_thread -
Execute (use
summary_only=trueto keep response under ~500 tokens):mcp__watercooler__watercooler_read_thread(topic="<topic>", summary_only=true) -
Present:
- Thread metadata
- Recent entries summary
- Current ball holder
- Offer to fetch full entries if the user needs more detail
Mode 3: Filter by Status
- Parse status from arguments (case-insensitive:
open/OPEN,closed/CLOSED) - List all threads using
watercooler_list_threads(same as Mode 1) - Filter results client-side by matching the thread
statusfield - Present filtered list using the same format as Mode 1
--raw Flag
When --raw is present (in any mode), show the full JSON response after the
human-readable summary. This is consistent with the recall skill behavior.
Example Invocations
/threads- List all threads/threads open- Show only open threads/threads mcp-migration- Show specific thread details/threads --raw- Full JSON output
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.
- 2d ago First seen · 76 lines · 28 tokens per session scan A 9e5d54c6556a
threads is a skill published in the GitHub repository mostlyharmless-ai/watercooler (13 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 28 tokens to every session and 564 once invoked, about $0.0001 per session on Opus 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.
Other skills, from other repositories
agent-release-manager
Agent skill for release-manager - invoke with $agent-release-manager.
agent-release-swarm
Agent skill for release-swarm - invoke with $agent-release-swarm.
agent-repo-architect
Agent skill for repo-architect - invoke with $agent-repo-architect.
agent-pagerank-analyzer
Agent skill for pagerank-analyzer - invoke with $agent-pagerank-analyzer.
agent-pseudocode
Agent skill for pseudocode - invoke with $agent-pseudocode.
agent-performance-analyzer
Agent skill for performance-analyzer - invoke with $agent-performance-analyzer.