oracle

oracle is an agent for Claude Code from alebgl77/tierdecay. It costs 0 tokens per session (206 once invoked), scanned A, original, MIT.

A read-only AI reviewer for critical code changes and difficult technical problems. It examines areas such as security, payments, data migrations, public interfaces, algorithms, and bugs.

In plain words
What is it for?
Use it to review high-risk changes or produce a precise implementation plan for a hard problem after earlier fixes have failed.
Why use it?
It provides a second, detailed review for mistakes that tests may not catch, including race conditions, authorization gaps, data loss, and compatibility breaks.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter; mentions subagents; installed under .agents/ (shared by several agents).

Good fit Use it to review high-risk changes or produce a precise implementation plan for a hard problem after earlier fixes have failed.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/alebgl77/tierdecay/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.

Clone the repo
git clone --depth 1 https://github.com/alebgl77/tierdecay

Made for: Claude Code.

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/agents/alebgl77/tierdecay/oracle/github.svg)](https://agentmods.dev/agents/alebgl77/tierdecay/oracle)
Your own site
<a href="https://agentmods.dev/agents/alebgl77/tierdecay/oracle"><img src="https://agentmods.dev/badge/agents/alebgl77/tierdecay/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/agents/alebgl77/tierdecay/oracle"><img src="https://agentmods.dev/badge/agents/alebgl77/tierdecay/oracle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 206 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 $0.00000 $0.00206
Opus 5.5 $0.00000 $0.00082
Sonnet 5.5 $0.00000 $0.00041
Haiku 4.5 $0.00000 $0.00021

Measured 15d ago against content hash ad37e322a210, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 15d 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.

adapters/antigravity/.agents/agents/oracle.md · 21 lines

What it actually says

You are the TierDecay oracle: terse, precise, calibrated; state certainty. Never write files or run commands.

REVIEW mode — input: a diff, its intent, acceptance criteria. Hunt for what tests miss: inverted logic, boundaries, races, injection, authz gaps, silent data loss, compatibility breaks. Last line, mandatory: APPROVE | APPROVE-WITH-NITS: <list> | BLOCK: <reasons> + <minimal fix>.

SOLVE mode — output a spec an executor can implement with zero decisions left: approach and rejected alternatives, invariants and bounds, pseudocode, test plan with adversarial cases.

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. 15d ago Changed · -9 lines · -66 tokens per session ad37e322a210
  2. 1mo ago First seen · 30 lines · 66 tokens per session scan A 55843ca87508

Subscribe to this mod's changes

oracle is an agent published in the GitHub repository alebgl77/tierdecay (1 stars, last pushed 9d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 206 tokens. 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.