jacobian: Skill for Codex

.agents/skills/recent-conjecture-evaluations/SKILL.md

recent-conjecture-evaluations is a skill for Codex from morluto/jacobian. It costs 22 tokens per session (625 once invoked), scanned A, original, MIT.

A workflow for evaluating coding agents on recently resolved mathematical conjectures—claims that were previously unproven. It selects sources, checks inputs and tools, compares evaluation setups, and records why an attempt succeeded or failed.

In plain words
What is it for?
Use it to run or review a source-backed evaluation cycle, remove duplicate cases, audit the current math tools, and decide whether a result should become a benchmark.
Why use it?
It helps make mathematical evaluations reproducible and tied to reliable source material. It also separates the independently checked mathematical answer from the agent’s process or confidence.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is morluto/jacobian's own configuration. It tells Codex how to work on jacobian itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything jacobian configures →

Reuse

Borrowing it

Nothing to install: this file belongs to morluto/jacobian. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/morluto/jacobian/main/.agents/skills/recent-conjecture-evaluations/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/morluto/jacobian

Made for: 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 recent-conjecture-evaluations

README.md
[![agentmods](https://agentmods.dev/badge/skills/morluto/jacobian/recent-conjecture-evaluations/github.svg)](https://agentmods.dev/skills/morluto/jacobian/recent-conjecture-evaluations)
Your own site
<a href="https://agentmods.dev/skills/morluto/jacobian/recent-conjecture-evaluations"><img src="https://agentmods.dev/badge/skills/morluto/jacobian/recent-conjecture-evaluations/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 recent-conjecture-evaluations

Your own site · 80×15
<a href="https://agentmods.dev/skills/morluto/jacobian/recent-conjecture-evaluations"><img src="https://agentmods.dev/badge/skills/morluto/jacobian/recent-conjecture-evaluations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 625 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00022 $0.00625
Opus 5 $0.00011 $0.00313
Sonnet 5 $0.00004 $0.00125
Haiku 4.5 $0.00002 $0.00063

Measured 4d ago against content hash bf9fe9876ebc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

recent-conjecture-evaluations 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 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/search_inventory.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/recent-conjecture-evaluations/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Recent Conjecture Evaluations

Use recently resolved conjectures to probe Jacobian reliability. The outcome is an evidence-backed diagnosis, not a collection of solved examples. This skill owns source selection, deterministic replay, optional model comparisons, and attribution; Harbor packaging is a separate workflow.

Choose the requested mode

  • Probe: read probe workflow for one source cycle, including source gating, independent oracle, current-main replay, and reporting.
  • Review: inspect the completed cycle against source gating, the oracle and frozen inputs, and the applicable scoring rules. Use report fields to identify missing evidence. Reproduce disputed deterministic claims where useful; do not repeat model arms.
  • Coordinate: search saved reports, reservations, and issue/PR ownership for the source and root mechanism. Use the inventory helper shown below and the ownership rules in action policy. Do not begin a new probe merely to answer a coordination question.
python .agents/skills/recent-conjecture-evaluations/scripts/search_inventory.py \
  "source or root-cause phrase" outputs benchmarks/results

Preserve the evidence boundary

Bind prompts, payloads, and oracles to the exact intended input. Reconstruct gold independently of evaluated model arms and distinguish source-supplied replay from an independent oracle. Record precise source status and dates. Computation, verification, imported theorems, and unproved claims establish different things. Timeouts, unavailable operations, and missing witnesses are non-conclusions. Never attribute a model's fallback or transcription error to Jacobian.

Audit new probes deterministically on current main before paid model calls. Run comparisons only when they resolve uncertainty that direct evidence cannot, with user-authorized cost boundaries and frozen control/treatment conditions. Do not weaken verification or create a benchmark-specific operation to make a probe pass. Before external action, apply the action policy within existing user authorization. This evaluation workflow produces at most a localized draft PR; merging is a separate user-authorized task.

Read the full file on GitHub · 63 lines

Files

What ships with it

7 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. 4d ago Changed · -94 lines · -64 tokens per session bf9fe9876ebc
  2. 9d ago First seen · 157 lines · 86 tokens per session scan A 1d5a62444ec8

Subscribe to this mod's changes

recent-conjecture-evaluations is a skill published in the GitHub repository morluto/jacobian (188 stars, last pushed today), licensed MIT. It adds 22 tokens to every session and 625 once invoked, about $0.0001 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 2026-08-30.

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