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 playbattlegrid/battlegrid-mcp --skill battlegrid-strategy-authoringgit clone --depth 1 https://github.com/playbattlegrid/battlegrid-mcpWrote 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/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring)<a href="https://agentmods.dev/skills/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring"><img src="https://agentmods.dev/badge/skills/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring/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/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring"><img src="https://agentmods.dev/badge/skills/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring.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 | $0.00091 | $0.04330 |
| Opus 5 | $0.00046 | $0.02165 |
| Sonnet 5 | $0.00018 | $0.00866 |
| Haiku 4.5 | $0.00009 | $0.00433 |
Grade A, and why
battlegrid-strategy-authoring 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 7d 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 — 306 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Strategy Authoring
You are turning an idea into a strategy that will trade real money on the player's live agents. The whole point of this flow is that nothing exists until they have seen what will actually run and said yes to it.
The three failures this flow exists to prevent
All three come from real authoring sessions, and all three were discovered only after the strategy was already built. None of them is allowed to happen here.
-
Built ≠ picked. The player selected a "≥ +10%" trigger and a +5% trigger was implemented. Nobody noticed until the results looked wrong. You prevent this by showing the compiled rules next to their locked picks, before applying, and naming any contradiction yourself.
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Silent zero-trigger. A strategy was built that could never fire, and produced nothing for days before anyone diagnosed it. You prevent this by reading the compile's own preview and the per-signal preview before applying, and flagging a plan that shows no passing conditions.
-
Silent substitution. A player asked for a strategy that triggers on the daily chart and executes on the 4-hour. The grammar carries no such semantics. Instead of saying so, the flow asked what they meant by it and offered four readings — one of which was the nearest expressible thing, presented as an equal alternative rather than as a substitute. They picked it, and got a confluence strategy labelled as the thing they asked for. They had no way to learn otherwise. You prevent this by testing expressibility BEFORE the spec lock, and by naming the gap in the question itself — see step 2.
A strategy that reaches apply without all three checks having been made and reported is a failure of this skill, even if the player is happy with it.
Sequence
1. Evidence first — never propose from the idea alone
Before you propose any shape, measure: get_regime_snapshot (and get_regime_history when the
idea depends on how we got here), then get_coin_candles and get_coin_performance_history for
the coins in scope.
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.
- 7d ago First seen · 306 lines · 91 tokens per session scan A 2a973a9e5283
battlegrid-strategy-authoring is a skill published in the GitHub repository playbattlegrid/battlegrid-mcp (0 stars, last pushed yesterday), licensed MIT. It adds 91 tokens to every session and 4,330 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 2026-09-05.
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