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jev-the-spire2

shoemoney/jev-the-spire2

Agent plays Slay the Spire 2 with single-call factored Jev decisions.

Automated README summary

Automatically summarized from the README on 1 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

A fork of alexmeckes/jev-the-spire where an agent plays Slay the Spire 2 through the STS2MCP bridge, choosing every move from the live board state. Aimed at people measuring fast, cheap decision policies against LLM baselines.

How it uses Jev

One Jev request per decision carries a move choice plus safe_/prog_/waste_ nouls per candidate. Returned probabilities are normalised with a 0.15 deadband, weighted (waste is a veto), and argmaxed into the action posted back to the bridge.

Primitives:choicenoul

Technique worth stealing

Factor one System Two decision into parallel System One questions in a single request; round trips, not questions, cost latency.

Try it

node spire-demo/server.mjs (default deliberate policy; SPIRE_RECALL=1 for recall).

View on GitHub

Start using Jev: API key and your first request →

Model judgments from README excerpts

Project signals use repository metadata, an existing summary and the first 700 README characters, not the full project. “Not found” means not detected in that material; it does not establish absence. These are the original judgments with recorded models and dates, not source audits or run results.

Models & evaluation dates

Inclusion gate
jev-1.13.0
Project signals
jev-1.13.0
Category
jev-1.13.0
Pattern tags
jev-1.13.0

Evidence

These signals use repository metadata, an existing summary and at most 700 cleaned README characters. ≥ 0.60 means reported in that excerpt; ≤ 0.40 means not found there. The middle band is inconclusive. None is a source-code audit or a test result. The runnable-tool question excludes research experiments; the recommendation question asks for a learning shortlist, not a quality verdict.

  • Jev is core to the projectFound in material0.89
  • Shows a System One patternFound in material0.84
  • Describes handling uncertaintynot found in the excerpt0.12
  • Reports measured numbersFound in material0.91
  • Is a runnable toolFound in material0.85
  • Top-10 learning shortlist signalunclear0.44
  • Is a replica of the modelnot found in the excerpt0.19
  • Solves a common problem (0–2)score on a 0–2 scale0.10 / 2
  • About JevFound in material0.97
Signals
Jev is core to the project0.89Shows a System One pattern0.84Describes handling uncertainty0.12Reports measured numbers0.91Is a runnable tool0.85Top-10 learning shortlist signal0.44Is a replica of the model0.1900.51Solves a common problem (0–2)0.10 / 2012

no-judgment band (0.40–0.60)

Design patterns
Questionnaire0.98Scorecard0.98Fail open, fail closed0.72Grey zone0.69Check-up0.58Prefetch0.47Question bank0.33Menu0.2800.51

no-judgment band (0.40–0.60)

The Jev model and date for each judgment stage are listed above. Card written by DeepSeek V4.1 Flash from the README on 1 Oct 2026.