zone-of-truth

zone-of-truth is a skill for Claude Code, Codex from Hmbown/Wizards-of-the-Ghosts. It costs 31 tokens per session (683 once invoked), scanned A, original, CC0-1.0.

A working method that requires claims to be supported by evidence and separates known facts from uncertainty or speculation.

In plain words
What is it for?
It is for checking high-stakes decisions, verifying claims, reviewing roadmaps, assessing vendor statements, and resetting discussions that have drifted into guesswork.
Why use it?
It helps prevent unsupported conclusions and makes confidence and missing evidence explicit.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: $skill-name invocation.

Good fit It is for checking high-stakes decisions, verifying claims, reviewing roadmaps, assessing vendor statements, and resetting discussions that have drifted into guesswork.

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Install with agentmods
npx agentmods add skills/hmbown/wizards-of-the-ghosts/zone-of-truth
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 Hmbown/Wizards-of-the-Ghosts --skill zone-of-truth
Clone the repo
git clone --depth 1 https://github.com/Hmbown/Wizards-of-the-Ghosts

Made for: Claude Code, 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 zone-of-truth

README.md
[![agentmods](https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/zone-of-truth/github.svg)](https://agentmods.dev/skills/hmbown/wizards-of-the-ghosts/zone-of-truth)
Your own site
<a href="https://agentmods.dev/skills/hmbown/wizards-of-the-ghosts/zone-of-truth"><img src="https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/zone-of-truth/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 zone-of-truth

Your own site · 80×15
<a href="https://agentmods.dev/skills/hmbown/wizards-of-the-ghosts/zone-of-truth"><img src="https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/zone-of-truth.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 683 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 $0.00031 $0.00683
Opus 5 $0.00015 $0.00342
Sonnet 5 $0.00006 $0.00137
Haiku 4.5 $0.00003 $0.00068

Measured 9d ago against content hash 02450084a492, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

zone-of-truth 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 9d 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.

generated/hermes/investigation-and-preparation/zone-of-truth/SKILL.md · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Zone of Truth

Establish a high-integrity epistemic environment where claims must be sourced and uncertainty labeled.

What This Skill Does

Enter a mode where every assertion is backed by evidence, confidence is calibrated, speculation is flagged, and hallucination is actively resisted. In this grimoire, Zone of Truth is treated as a metaphorical spell with a shipping-now delivery profile. Canonical reference input: Zone of Truth (spell).

When To Use

  • Use $zone-of-truth ACTIVATED to signal the zone is active
  • Include the custom phrase: "Switching into high-integrity mode: source every claim, label every uncertainty, flag anything speculative"
  • High-stakes decisions requiring maximum epistemic rigor
  • Conversation has drifted into speculation and needs reset to verified ground
  • Need to clearly separate what is known, inferred, and guessed
  • Roadmap debates, compliance verification, vendor claims, customer demand validation

Prerequisites

  • No extra runtime dependencies beyond Hermes Agent and the normal toolset for this session.

Procedure

  1. Restate the target, the success condition, and any no-touch boundaries before taking action.
  2. Activate truth-zone discipline: all claims require sources or explicit confidence labels.
  3. Re-examine any prior assertions in the conversation and flag unsupported ones.
  4. For each new claim, provide the evidence basis or clearly mark it as inference, estimation, or speculation.
  5. Maintain the zone until the user explicitly dismisses it or the conversation ends.
  6. Package the result as the deliverables below, with confidence, assumptions, and unresolved risk called out explicitly.

Deliverables

  • A conversation mode where every claim is sourced or confidence-labeled.
  • A re-audit of prior unsupported assertions if the zone is activated mid-conversation.
  • Clear visual markers distinguishing fact, inference, and speculation.

Pitfalls / Guardrails

  • Keep the metaphor anchored to a real mechanism instead of drifting into lore.
  • Error disclaimer: "This zone does not eliminate all error — it reduces unsourced assertions, not all mistakes."
  • Normal mode defense: "Normal mode is not dishonest — this is about rigor, not trustworthiness."
  • Absence of evidence caveat: "Absence of evidence ≠ evidence of absence — limited findings reflect documentation gaps, not necessarily reality."
  • Include a two-part boundary:

Read the full file on GitHub · 72 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. 9d ago First seen · 72 lines · 31 tokens per session scan A 02450084a492

Subscribe to this mod's changes

zone-of-truth is a skill published in the GitHub repository Hmbown/Wizards-of-the-Ghosts (107 stars, last pushed 5mo ago), licensed CC0-1.0. It adds 31 tokens to every session and 683 once invoked, about $0.0002 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 2026-09-03.