oracle

oracle is a skill for Claude Code from geronimo-iia/agent-skills. It costs 66 tokens per session (776 once invoked), scanned A, original, MIT.

A second-model review skill that packages a prompt and selected project files into a request for another AI model. The other model's response is advice to check against the code and tests, not an automatic decision.

In plain words
What is it for?
It helps get outside opinions on difficult bugs, architecture choices, refactoring plans, and design decisions.
Why use it?
A separate model can provide an independent view when the current approach is stuck or too familiar. Bundling relevant files gives that reviewer the context needed to assess the problem.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents; mentions Claude Code.

Part of the geronimo-skills plugin — 9 skills shipped together

Good fit It helps get outside opinions on difficult bugs, architecture choices, refactoring plans, and design decisions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/geronimo-iia/agent-skills/oracle
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 geronimo-iia/agent-skills --skill oracle
Clone the repo
git clone --depth 1 https://github.com/geronimo-iia/agent-skills

Made for: Claude Code.

Or install geronimo-skills, the plugin that ships this one along with the rest of its 9 skills.

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 oracle

README.md
[![agentmods](https://agentmods.dev/badge/skills/geronimo-iia/agent-skills/oracle/github.svg)](https://agentmods.dev/skills/geronimo-iia/agent-skills/oracle)
Your own site
<a href="https://agentmods.dev/skills/geronimo-iia/agent-skills/oracle"><img src="https://agentmods.dev/badge/skills/geronimo-iia/agent-skills/oracle/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 oracle

Your own site · 80×15
<a href="https://agentmods.dev/skills/geronimo-iia/agent-skills/oracle"><img src="https://agentmods.dev/badge/skills/geronimo-iia/agent-skills/oracle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 776 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 $0.00066 $0.00776
Opus 5 $0.00033 $0.00388
Sonnet 5 $0.00013 $0.00155
Haiku 4.5 $0.00007 $0.00078

Measured 4d ago against content hash c788af6b0e71, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

oracle 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.

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.

skills/oracle/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Oracle — Second-Model Review

Bundle your prompt + relevant files into one "one-shot" request and send to another model. Treat all outputs as advisory: verify against the codebase and tests before acting.

When to use

  • Stuck on a hard bug and want a second opinion without sharing full context
  • Architecture decision that benefits from a fresh model's read
  • Refactor plan you want cross-validated before executing
  • Any situation where model A is too familiar with the problem to see it clearly

Approaches

Option A: code2prompt (recommended)

Rust CLI — single binary, token counting, git integration, Handlebars templates.

cargo install code2prompt
# Bundle dir → clipboard (default)
code2prompt src/

# Save to file
code2prompt src/ --output-file /tmp/bundle.txt

# Include/exclude patterns (glob)
code2prompt src/ --include "*.rs" --exclude "*.test.rs"

# Show token count before sending
code2prompt src/ --tokens

# Include git diff in bundle
code2prompt . --diff

# Custom Handlebars template
code2prompt src/ --template templates/review.hbs

Project-level config: .c2pconfig at repo root.

Run code2prompt --help for full flag reference. TUI available for interactive selection.

Option B: Agent tool with model override

Within Claude Code, spawn a subagent on a different model tier:

// In a Workflow script
const review = await agent(
  `Review this design: <context>. Question: <question>`,
  { model: 'opus', label: 'second-opinion' }
)

Writing a high-signal prompt

Any second-model review starts with zero project knowledge. Include everything needed to answer cold:

  1. Project briefing — stack, build/test commands, platform constraints
  2. Where things live — key directories, entrypoints, config files
  3. Exact question — what you tried, the error text verbatim
  4. Constraints — "don't change X", "must keep public API", "perf budget"
  5. Desired output — "return patch plan", "list risky assumptions", "give 3 options with tradeoffs"

Read the full file on GitHub · 99 lines

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 First seen · 99 lines · 66 tokens per session scan A c788af6b0e71

Subscribe to this mod's changes

oracle is a skill published in the GitHub repository geronimo-iia/agent-skills (2 stars, last pushed 9d ago), licensed MIT. It adds 66 tokens to every session and 776 once invoked, about $0.0003 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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