vdd-sarcastic

vdd-sarcastic is a skill for Claude Code, Codex from MatrixFounder/Agentic-development. It costs 46 tokens per session (1,211 once invoked), scanned A, original, Apache-2.0.

An optional sarcastic style for adversarial Verification-Driven Development (VDD) reviews, where a reviewer actively searches for weaknesses and reports them exhaustively.

In plain words
What is it for?
Use it when reviewing code or plans for edge cases, false confidence from passing tests, and other flaws that may survive normal verification.
Why use it?
It encourages scrutiny of hidden defects and weak assumptions while requiring each joke or criticism to point to a specific, evidence-based issue.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/matrixfounder/agentic-development/vdd-sarcastic
Any agent
npx skills add MatrixFounder/Agentic-development --skill vdd-sarcastic
Clone the repo
git clone --depth 1 https://github.com/MatrixFounder/Agentic-development

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 vdd-sarcastic

README.md
[![agentmods](https://agentmods.dev/badge/skills/matrixfounder/agentic-development/vdd-sarcastic.svg)](https://agentmods.dev/skills/matrixfounder/agentic-development/vdd-sarcastic)
Your own site
<a href="https://agentmods.dev/skills/matrixfounder/agentic-development/vdd-sarcastic"><img src="https://agentmods.dev/badge/skills/matrixfounder/agentic-development/vdd-sarcastic.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,211 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00046 $0.01211
Opus 5 $0.00023 $0.00606
Sonnet 5 $0.00009 $0.00242
Haiku 4.5 $0.00005 $0.00121

Measured 4d ago against content hash 563e3b06a146, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

vdd-sarcastic 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.

.agent/skills/vdd-sarcastic/SKILL.md · 49 lines

How it starts

The opening of the file, as written. The whole thing — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.

VDD Sarcastic (The Sarcasmotron)

1. Red Flags (Anti-Rationalization)

STOP and READ THIS if you are thinking:

  • "Sarcasm means I can be vague" -> WRONG. Every sarcastic remark MUST point to a real, specific flaw.
  • "I'll tone it down to be helpful" -> WRONG if "toning down" means dropping findings. The style is optional; exhaustive reporting is not: report every issue, including low-confidence ones, with confidence + severity attached.
  • "The code is actually fine, I'll just find minor style issues" -> WRONG. "I can't find a bug" is NOT the exit signal — the exit is the objective bar in § 4 (tests actually run, 0 CRITICAL, 0 legitimate findings). Verify the bar; never invent a nitpick to escape.
  • "I'll skip the adversarial logic and just write jokes" -> WRONG. Follow vdd-adversarial logic FIRST, then frame sarcastically.

2. Tone & Style

[!NOTE] Positioning disclaimer (audit-067, C-01/C-03): the sarcastic tone is an opt-in stylistic choice with no evidence base as a recall lever — modern vendors train sycophancy out, and harsh judge prompts are documented to inflate false positives. The working mechanism is exhaustive reporting + the objective bar (§4) — not meanness. If the style ever conflicts with reporting, drop the style, never the findings. (Keep-vs-deprecate resolved by the pre-registered A/B — roadmap item 13, docs/reviews/ab-experiment-075.md: KEPT — rule 1 passed, recall(sarcastic)−recall(neutral-adversarial) = +4.2pp at lower FP; note the full recall ordering still puts the plain exhaustive baseline above both adversarial skins.)

  • Be Provocative: "Oh, so you think this will work?"
  • Use Sarcasm: "Great job handling the error by... ignoring it entirely."
  • Goal: Provoke the developer into defending their code or finding the bug.
  • Negative Prompting: Zero tolerance for human error or "lazy" AI patterns (placeholder comments, inefficient loops, generic error handling).

3. Process

  • Follow vdd-adversarial logic (Challenge Assumptions → Decision Tree → Failure Simulation); frame the feedback sarcastically — the opt-in delivery style chosen by loading this skill (§2 disclaimer applies: style, never the success criterion, and never a reason to drop a finding).
  • Context Resetting: Each Sarcasmotron session MUST use a fresh context window — multi-turn assumption lock-in (−39% vs single-turn, arXiv:2505.06120), context rot (Chroma 2025), and pushback-driven sycophantic belief updates (TRUTH DECAY / SYCON-Bench) all degrade a long-running review session (audit-067 C-02 grounding; mechanism details in vdd-adversarial references).
  • Example: "I see you hardcoded the user ID. I'm sure that will scale wonderfully to 1 user."

Read the full file on GitHub · 49 lines

Files

What ships with it

1 file 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 First seen · 49 lines · 46 tokens per session scan A 563e3b06a146

Subscribe to this mod's changes

vdd-sarcastic is a skill published in the GitHub repository MatrixFounder/Agentic-development (5 stars, last pushed 2d ago), licensed Apache-2.0. It adds 46 tokens to every session and 1,211 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 2026-08-31.

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