answer-format-completion

A response-format rule for multiple-choice questions that require one selected option.

In plain words
What is it for?
Use it when answering questions with options such as A, B, C, or D, where the expected result is a single choice.
Why use it?
It prevents an explanation from replacing the direct answer or leaving the response incomplete.

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/ucsc-vlaa/visualclaw/answer-format-completion
Any agent
npx skills add UCSC-VLAA/VisualClaw --skill answer-format-completion
Clone the repo
git clone --depth 1 https://github.com/UCSC-VLAA/VisualClaw

Made for: Claude Code, Codex.

Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 238 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 $0.00031 $0.00238
Opus 5 $0.00015 $0.00119
Sonnet 5 $0.00006 $0.00048
Haiku 4.5 $0.00003 $0.00024

Measured 2d ago against content hash 821bbd0c584d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

answer-format-completion 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 2d 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.

visualclaw/skills_seed/seed_universal_mc/answer-format-completion/SKILL.md · 18 lines

What it actually says

Provide Complete Direct Answers

  1. Recognize multiple-choice format: When presented with options (A), (B), (C), (D), (E), a single letter answer is expected.
  2. Commit to a choice: Select the single best option based on visual and contextual analysis.
  3. Deliver answer first: Provide the letter choice immediately, not a partial explanation.
  4. Only elaborate if requested: Add reasoning only if the prompt asks "why" or "explain"—not by default.
  5. Avoid incomplete responses: Do not start analysis and trail off; complete the answer.

Example: When asked to choose between dog mat washing outcomes, respond with "(E)" not "Based on the visual evidence in the keyframes, the person is seen washing..."

Anti-pattern: Beginning a multi-sentence explanation when a single letter choice is required, leaving the response incomplete or ambiguous.

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. 2d ago First seen · 18 lines · 31 tokens per session scan A 821bbd0c584d

Subscribe to this mod's changes

answer-format-completion is a skill published in the GitHub repository UCSC-VLAA/VisualClaw (53 stars, last pushed 2mo ago), licensed MIT. It adds 31 tokens to every session and 238 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 2026-08-30.

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