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 SoliEstre/EstreGenesis --skill constellation-boardgit clone --depth 1 https://github.com/SoliEstre/EstreGenesisWrote 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/soliestre/estregenesis/constellation-board)<a href="https://agentmods.dev/skills/soliestre/estregenesis/constellation-board"><img src="https://agentmods.dev/badge/skills/soliestre/estregenesis/constellation-board/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/soliestre/estregenesis/constellation-board"><img src="https://agentmods.dev/badge/skills/soliestre/estregenesis/constellation-board.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 | $0.00090 | $0.00348 |
| Opus 5 | $0.00045 | $0.00174 |
| Sonnet 5 | $0.00018 | $0.00070 |
| Haiku 4.5 | $0.00009 | $0.00035 |
Grade A, and why
constellation-board 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 10d 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
Read the Constellation board
Use the constellation-mcp MCP server's read tools to inspect board state without standing up a WS connection.
When to invoke
- "What agents are currently on the board?" →
agent_list_get - "What's the current state.json?" →
board_state_get(modes, channels, decisions, keys) - "What did agent X say recently?" →
board_history_tail(channelId, sinceCursor)
Output discipline
- Return the parsed state to the calling turn — don't dump raw JSON unless the user asks
- Filter A2A history with the §13.16.9 v2.5.2 4-group meaningful filter (A2A-intent only) unless the user asks for raw
- Cite line numbers / msgIds when referencing specific entries
Composition
Pairs with constellation-a2a-emit (write) and constellation-start (lifecycle). Read first, decide, then emit — the §13.16.10 pre-send probe discipline applies to MCP write too.
Spec source
Constellation.md §8 (MCP integration spec) — read interface at §8.2.
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.
- 10d ago First seen · 29 lines · 90 tokens per session scan A 8b79adeb70c6
constellation-board is a skill published in the GitHub repository SoliEstre/EstreGenesis (8 stars, last pushed 3d ago), licensed Apache-2.0. It adds 90 tokens to every session and 348 once invoked, about $0.0005 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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