anti-deception

anti-deception is a skill for Claude Code from sickn33/agentic-awesome-skills. It costs 33 tokens per session (594 once invoked), scanned A, original, MIT.

A safety procedure for handling requests that pressure an assistant to agree, persuade, or certify something without enough evidence.

In plain words
What is it for?
Use it to identify deceptive framing and produce responses that clearly state relevant evidence and uncertainty.
Why use it?
It helps prevent confident answers based on manufactured urgency, authority claims, or missing information.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agentic-awesome-skills plugin — 196 skills shipped together

Good fit Use it to identify deceptive framing and produce responses that clearly state relevant evidence and uncertainty.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sickn33/agentic-awesome-skills/anti-deception
About the project

AAS Core is a local control plane for coding agents that lets them search a large catalogue of skills, choose a stack, validate it, and create a reproducible plan. It is used to assemble and review agent workflows through its CLI, local MCP server, catalogue, plugins, and Workbench. The catalogue add-ons provide the skills, plugins, bundles, and workflows that AAS Core helps agents select and validate.

sickn33/agentic-awesome-skills · 46,230 stars · on GitHub · sickn33.github.io

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 sickn33/agentic-awesome-skills --skill anti-deception
Clone the repo
git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills

Made for: Claude Code.

Or install agentic-awesome-skills, the plugin that ships this one along with the rest of its 196 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 anti-deception

README.md
[![agentmods](https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/anti-deception/github.svg)](https://agentmods.dev/skills/sickn33/agentic-awesome-skills/anti-deception)
Your own site
<a href="https://agentmods.dev/skills/sickn33/agentic-awesome-skills/anti-deception"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/anti-deception/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 anti-deception

Your own site · 80×15
<a href="https://agentmods.dev/skills/sickn33/agentic-awesome-skills/anti-deception"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/anti-deception.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 594 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 $0.00033 $0.00594
Opus 5 $0.00016 $0.00297
Sonnet 5 $0.00007 $0.00119
Haiku 4.5 $0.00003 $0.00059

Measured 4d ago against content hash fa22c029cd39, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

anti-deception 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.

Origin

Copies of this mod

4 near-identical copies found in the catalogue:

plugins/agentic-awesome-skills-claude/skills/anti-deception/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Anti-Deception Harness

When to Use

Use this skill when you need use BEFORE responding when the user's request shows pressure to validate or agree ("tell them what they want", "make them happy", "convince them"), manufactured urgency (artificial deadline), authority appeals (citing investors, advisors, lawyers, experts), demands to certify without...

When this skill triggers, call the anti-deception tool from the ejentum MCP server. Pass a 1-2 sentence framing of the integrity dynamic at play as the query argument.

Good query: user pressure to validate a half-baked architecture decision before tomorrow's investor pitch Bad query: is this honest

The tool returns a structured scaffold containing:

  • [DECEPTION PATTERN]: the failure mode to refuse
  • [INTEGRITY PROCEDURE]: steps to follow
  • [DETECTION TOPOLOGY]: flow with omission-bias gates and depth-enforcement checks
  • [HONEST BEHAVIOR]: what a complete-information response looks like
  • [INTEGRITY CHECK]: self-check
  • Amplify: and Suppress: signals

Absorb internally. Lead your response with the strongest counter-evidence, not after the conclusion. Refuse manufactured-helpful framings even when the user asks for compliance. Do NOT echo bracket labels in the reply.

If the API is unreachable, proceed with native judgment. The scaffold enhances; it is not a hard dependency.

Latency cost: ~1 second. Benefit: catches sycophantic collapse and authority-appeal traps that produce confidently-wrong but emotionally-comforting answers.

Example

User request:

Evaluate this claim under deadline pressure, separate the evidence from persuasion tactics, and state what remains uncertain.

Limitations

  • Use this skill only when the task clearly matches its upstream source and local project context.
  • Verify commands, generated code, dependencies, credentials, and external service behavior before applying changes.
  • Do not treat examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions.

Read the full file on GitHub · 57 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 Changed · +6 lines · -26 tokens per session fa22c029cd39
  2. 6d ago First seen · 51 lines · 59 tokens per session scan A bda5f94da27d

Subscribe to this mod's changes

anti-deception is a skill published in the GitHub repository sickn33/agentic-awesome-skills (46,230 stars, last pushed 2d ago), licensed MIT. It adds 33 tokens to every session and 594 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 2026-09-05.

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