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/gaelic-ghost/socket/coordinate-external-agentsnpx skills add gaelic-ghost/socket --skill coordinate-external-agentsgit clone --depth 1 https://github.com/gaelic-ghost/socketWhat 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 | $0.00051 | $0.00411 |
| Opus 5 | $0.00026 | $0.00205 |
| Sonnet 5 | $0.00010 | $0.00082 |
| Haiku 4.5 | $0.00005 | $0.00041 |
Grade A, and why
coordinate-external-agents 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
Coordinate External Agents
Treat an external agent as an independently operated worker, not as a magical subagent. Starting it is not progress unless the coordinator can later discover its state and consume its report.
Workflow
- Choose a durable shared surface: task record, issue, pull request, branch, worktree, artifact directory, shared document, queue, or host-native board.
- Create a task record with the normal launch envelope plus access, retention, retry/resume, and result-delivery details.
- Assign one owner, one coordinator, one artifact/write surface, and one final verification owner. Do not assume direct worker-to-worker messages exist.
- Record status using
queued,running,blocked,needs-decision,completed,failed, orcancelled; use the selected host's closest equivalent without hiding meaning. - Require a final report on the durable surface and notify the coordinator through the specified return route.
- Verify the returned artifact, branch, change, or evidence before treating the task as complete.
Durable Work Rule
Use a queue, board, scheduled task, CI workflow, or service for work that must survive session closure, restart, human input, retry, multiple roles, or later audit. Do not represent a transient child-agent call as durable work.
Boundaries
- Keep credentials, private context, and mutation authority scoped to the external worker's actual access surface.
- Use host-specific adapters only for mechanics. This skill owns the universal handoff contract; it does not claim Codex, ChatGPT Work, Hermes, or another host shares one message or task API.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 41 lines · 51 tokens per session scan A d6635915a5bc
coordinate-external-agents is a skill published in the GitHub repository gaelic-ghost/socket (7 stars, last pushed 6d ago), licensed Apache-2.0. It adds 51 tokens to every session and 411 once invoked, about $0.0003 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 2026-08-31.
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