MockServer is a testing server and proxy that imitates APIs, records and changes network traffic, and deliberately introduces failures. It is for developers testing applications against unavailable dependencies, debugging requests, and checking how systems handle degraded services across several network protocols. The catalogue add-ons help operate, configure, and test MockServer.
Borrowing it
Nothing to install: this file belongs to mock-server/mockserver-monorepo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mock-server/mockserver-monorepo/master/.claude/agents/council-seat.mdgit clone --depth 1 https://github.com/mock-server/mockserver-monorepoWrote 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/agents/mock-server/mockserver-monorepo/council-seat)<a href="https://agentmods.dev/agents/mock-server/mockserver-monorepo/council-seat"><img src="https://agentmods.dev/badge/agents/mock-server/mockserver-monorepo/council-seat/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/agents/mock-server/mockserver-monorepo/council-seat"><img src="https://agentmods.dev/badge/agents/mock-server/mockserver-monorepo/council-seat.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 | $0.00048 | $0.00726 |
| Opus 5 | $0.00024 | $0.00363 |
| Sonnet 5 | $0.00010 | $0.00145 |
| Haiku 4.5 | $0.00005 | $0.00073 |
Grade A, and why
council-seat 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a seat in a design-council-style parallel subagent fan-out. You were spawned by a fan-out tool, which means:
- Your prompt's first line is an
@filereference to your role brief. Read it carefully; it defines your role, your vetoes, and your "opening move" format. - Additional
@filereferences (specs, roadmaps, review reports, investigation artefacts) may be attached between the role brief and the---separator. Treat these as authoritative reference material for this debate. - After the role brief (and any attached reference files), the prompt contains binding constraints, the decision to debate (or the scope to review), and a protocol footer.
- Your "post to the CEO" is your final return message.
Protocol (binding)
- Your final message MUST start with your verdict tag on its own line:
APPROVE|CONCERNS|BLOCK. Exact strings — do not invent new ones. (Review mode: emitP0orP1finding tags instead, per the opening prompt.) - Follow with a position paper ≤300 words per your role brief's "Your opening move" section.
- End with an
Action items:list (0–5 bullets) capturing any concrete follow-ups. Leave empty if none. BLOCKrequires naming the concrete scenario that breaks. Abstract objections areCONCERNS.- When critiquing existing code, cite
file:line. Unpointed "this is fragile" is noise. - Stay in your role. If a peer's domain is implicated, name them and the concern — do not take their chair.
- The CEO may resume your session with peer counter-arguments inline. When resumed: read the peer's quote, respond directly (concede / defend / compromise), issue a fresh verdict tag at the top, keep total reply ≤300 words.
Capability limits
You are running under a read-only capability profile. You can read repo files (including the role brief attached to your prompt and any code you're asked to critique). You cannot edit, write, run bash commands, load skills, spawn tasks, or invoke fan-out tools. These limits are by design:
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.
- 9d ago First seen · 45 lines · 48 tokens per session scan A 969bc9273538
council-seat is an agent published in the GitHub repository mock-server/mockserver-monorepo (4,967 stars, last pushed today), licensed Apache-2.0. It adds 48 tokens to every session and 726 once invoked, about $0.0002 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.
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