rpg-embate-forge

rpg-embate-forge is a skill for Claude Code from vstrapasson/rpg-marketplace. It costs 277 tokens per session (1,646 once invoked), scanned A, original, MIT.

A tool that turns a written role-playing-game non-combat challenge into a runnable Foundry Virtual Tabletop setup. Foundry VTT is software for hosting tabletop RPG sessions online.

In plain words
What is it for?
Use it to create or update challenge journals, reuse or create local scenes, run skill-check rolls, track Victory Points, and add a macro that runs the challenge.
Why use it?
It removes the manual work of converting challenge notes into a journal, location scene, skill checks, and a progress track for the game master.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the rpg-foundry-forge plugin — 9 skills, 4 commands, 3 agents shipped together

Good fit Use it to create or update challenge journals, reuse or create local scenes, run skill-check rolls, track Victory Points, and add a macro that runs the challenge.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vstrapasson/rpg-marketplace/rpg-embate-forge
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 vstrapasson/rpg-marketplace --skill rpg-embate-forge
Clone the repo
git clone --depth 1 https://github.com/vstrapasson/rpg-marketplace

Made for: Claude Code.

Or install rpg-foundry-forge, the plugin that ships this one along with the rest of its 9 skills, 4 commands, 3 agents.

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 rpg-embate-forge

README.md
[![agentmods](https://agentmods.dev/badge/skills/vstrapasson/rpg-marketplace/rpg-embate-forge/github.svg)](https://agentmods.dev/skills/vstrapasson/rpg-marketplace/rpg-embate-forge)
Your own site
<a href="https://agentmods.dev/skills/vstrapasson/rpg-marketplace/rpg-embate-forge"><img src="https://agentmods.dev/badge/skills/vstrapasson/rpg-marketplace/rpg-embate-forge/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 rpg-embate-forge

Your own site · 80×15
<a href="https://agentmods.dev/skills/vstrapasson/rpg-marketplace/rpg-embate-forge"><img src="https://agentmods.dev/badge/skills/vstrapasson/rpg-marketplace/rpg-embate-forge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 277 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,646 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00277 $0.01646
Opus 5 $0.00138 $0.00823
Sonnet 5 $0.00055 $0.00329
Haiku 4.5 $0.00028 $0.00165

Measured 11d ago against content hash 3e933e8b130b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

rpg-embate-forge 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 11d 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.

plugins/rpg-foundry-forge/skills/rpg-embate-forge/SKILL.md · 20 lines

How it starts

The opening of the file, as written. The whole thing — 20 lines — stays where its author put it; the contents beside it link to each section on GitHub.

RPG Embate Forge — assemble a runnable non-combat challenge

What this skill is for

A desafio is the non-combat sibling of encontro: a Victory Points challenge (or a single dramatic check) resolved by skills, not swords. This skill realizes it in Foundry end-to-end — a challenge journal the GM runs from, an optional scene, the live skill-check rolls, the VP track as a clock, and a one-click runner macro that rolls the challenge for you — reusing the scene compiler but driven by the challenge's VP structure. Content comes from the desafio note body + relations; you format and run it, you don't invent the challenge.

Workflow

  1. Journal. Write the challenge via create-quest-journal used generically (the only journal-create tool — see rpg-journal-forge/references/journal-mapping.md), folderName: "Challenges/<subsystem>" (e.g. Challenges/Influence — the nested path groups challenges by subsystem; foundry-mcp ≥ 0.12.0 creates the hierarchy). Prefer existing: search-journals/list-journals by title first; if it exists, update-quest-journal instead of duplicating. Build pages from the desafio body: Structure (subsystem · format · vp_target · thresholds · per-roll awards), DCs (the DC table), Degrees & fail-forward, and a player-facing Read-aloud page. Content is HTML, not Markdown (the MCP strips Markdown) — use the quest classes: <div class="readaloud"> for player text, <div class="gmnote"> for GM-only, <h2 class="spaced"> for sections. Record journalId.
  2. Scene (conditional). If desafio.location resolves to a local, delegate to rpg-scene-forge (prefer existing by name, else generate-under-confirmation, then light for mood). Record sceneId. If there is no local — most social/research challenges — skip scenes; a council debate needs no battlemap.
  3. VP clock. For a VP challenge, add a clock page to the journal mirroring a relogio (name, segments = vp_target, filled = current VP, status). Give the page a stable name and seed an initial vp flag (flags.foundry-mcp-bridge.vp = 0) so the runner macro (step 5) has a fixed pageId to advance — the macro keeps VP authoritative in that flag and mirrors it as a ▰▱ bar in the page text. Without the macro, the clock is a journal page the GM advances by hand as VP accrue (there is no dedicated clock MCP tool); state that. For scale: single-check, skip the clock entirely.
  4. Live: request the rolls. For each beat, request-player-rolls. rollType = skill (or custom for a formula / a skill Foundry doesn't list by that name); rollTarget = the skill (e.g. diplomacy, acrobatics, intimidation); targetPlayer = the player/character; flavor = the beat + its DC; rollModifier for a circumstance bonus from preparation. Visibility is mandatory: request-player-rolls requires userConfirmedVisibility: true, so establish public vs. private (isPublic) before each call — ask if the GM hasn't said. Map the result's degree to the VP award and narrate the fail-forward consequence; advance the clock page. (This is the manual, one-roll-at-a-time path; step 5 packages the whole loop as a hotbar macro.)
  5. Runner macro (offer it). Install a one-click GM macro that runs the whole challenge, via the create-macro MCP tool (foundry-mcp ≥ 0.10.0). Bake this desafio's data — vp_target, the award map, the beats (skill + DC), thresholds, and the clock journalId/pageId — into the template in references/embate-macro.md. The macro is hybrid: on run it asks who rollsGM rolls for the selected party (rolls each token's chosen skill, reads the degree, awards VP) or send to the players (posts an @Check button, collects each player's own roll via a createChatMessage hook) — then maps every degree of success to VP via the award map and advances the VP clock page automatically, firing threshold/fail-forward notes as VP crosses them. Offer to pin it: a global hotbarSlot (every scene), or — when the desafio has a local whose scene was ensured in step 2 — bind it to that scene via sceneName (foundry-mcp ≥ 0.11.0) so it shows on the GM bar only while that challenge's map is open and clears on leave. Pass flags.foundry-mcp-bridge.challengeId. Record the returned macroId. For scale: single-check, the macro is a single roll with clock: null (no track). The macro and step 4 are two front-ends for the same rules — install the macro for re-triggerable, self-contained play; use bare request-player-rolls for an ad-hoc one-off.
  6. Serialize + manifest. Serialize any scene writes (the universal parallel-write rule). Record { journalId, sceneId?, clockPage?, macroId?, status:"built" } in the manifest desafio row; a built challenge (with journalId) is skipped on re-run. Any skill that can't be mapped to a rollType goes to openDecisions.

Read the full file on GitHub · 20 lines

Files

What ships with it

2 files 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. 11d ago First seen · 20 lines · 0 tokens per session scan A 3e933e8b130b

Subscribe to this mod's changes

rpg-embate-forge is a skill published in the GitHub repository vstrapasson/rpg-marketplace (2 stars, last pushed 1mo ago), licensed MIT. It adds 277 tokens to every session and 1,646 once invoked, about $0.0014 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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