battlegrid-strategy-authoring

battlegrid-strategy-authoring is a skill for Claude Code, Codex from playbattlegrid/battlegrid-mcp. It costs 96 tokens per session (9,409 once invoked), scanned C, original, MIT.

A guide for turning a plain-English trading idea into a strategy that can run with real money. It gathers evidence, confirms the exact rules, checks them against the platform's allowed grammar, previews the result, and applies it only after approval.

In plain words
What is it for?
Use it to create, preview, review, fork, tune, restore, or archive trading strategies and to verify their compiled conditions before use.
Why use it?
It reduces the risk that the built strategy differs from the requested one or can never trigger. It also exposes unsupported rules before they are applied.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create, preview, review, fork, tune, restore, or archive trading strategies and to verify their compiled conditions before use.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring
Install

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.

Any agent
npx skills add playbattlegrid/battlegrid-mcp --skill battlegrid-strategy-authoring
Clone the repo
git clone --depth 1 https://github.com/playbattlegrid/battlegrid-mcp

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for battlegrid-strategy-authoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring/github.svg)](https://agentmods.dev/skills/playbattlegrid/battlegrid-mcp/battlegrid-strategy-authoring)
Your own site
<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.

agentmods 80×15 button for battlegrid-strategy-authoring

Your own site · 80×15
<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>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,409 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00096 $0.09409
Opus 5.5 $0.00038 $0.03764
Sonnet 5.5 $0.00019 $0.01882
Haiku 4.5 $0.00010 $0.00941

Measured today against content hash 9a58b8cda9f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

battlegrid-strategy-authoring scanned grade C with 1 finding 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 today.

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.

Tells the agent never to refusehighAnti-refusal

Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.

- `warnings` — observations that never refuse. `NO_ENTRY_CONDITION` means the strategy declares no
skills/battlegrid-strategy-authoring/SKILL.md · 527 lines

How it starts

The opening of the file, as written. The whole thing — 527 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 is committed 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.

  1. 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 drafted conditions, as the server's own draft read serves them, next to their locked picks, before committing, and naming any contradiction yourself.

  2. 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 draft's own report preview and its diagnostics before committing, and flagging a draft that shows no passing conditions or warns NO_ENTRY_CONDITION.

  3. 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 a commit 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.

Read the full file on GitHub · 527 lines

Files

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.

Changes

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.

  1. today Changed · +29 lines 9a58b8cda9f1
  2. yesterday Changed · +2 lines 43b6b41e6050
  3. 3d ago Changed · +26 lines 11869b767def
  4. 4d ago Changed · +13 lines 174ecf79f043
  5. 7d ago Changed · +7 lines dc36ffee1d47
  6. 11d ago Changed · +4 lines e2422b0e02de
  7. 21d ago Changed · +12 lines 39cfa46b1f64
  8. 22d ago Changed · +2 lines 098308e69093
  9. 24d ago Changed · -7 lines 2b6bb9a9f419
  10. 28d ago First seen · 439 lines · 96 tokens per session scan C fcc4ab6ae7e7

Subscribe to this mod's changes

battlegrid-strategy-authoring is a skill published in the GitHub repository playbattlegrid/battlegrid-mcp (0 stars, last pushed today), licensed MIT. It adds 96 tokens to every session and 9,409 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it C with 1 finding (tells the agent never to refuse). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.

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