agentmods.dev

avoiding-duplicate-generations

avoiding-duplicate-generations is a skill for Claude Code, Codex from egocen-vivideo/vivideo-toolchain. It costs 44 tokens per session (352 once invoked), scanned A, original, MIT.

A safeguard for preventing the same Vivideo request from creating and charging for multiple videos.

In plain words
What is it for?
Use it in automated or retryable video creation, reusing the same key on retries and adopting the existing video when Vivideo reports a duplicate.
Why use it?
Retries or parallel processes can submit one logical request more than once. An idempotency key—a stable label for that request—lets Vivideo recognize repeats.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 0repo 3mo ago A scan 44 tokens original MIT

Good fit Use it in automated or retryable video creation, reusing the same key on retries and adopting the existing video when Vivideo reports a duplicate.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/egocen-vivideo/vivideo-toolchain/avoiding-duplicate-generations
View source ↗ egocen-vivideo/vivideo-toolchain
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 egocen-vivideo/vivideo-toolchain --skill avoiding-duplicate-generations
Clone the repo
git clone --depth 1 https://github.com/egocen-vivideo/vivideo-toolchain

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 avoiding-duplicate-generations

README.md
[![agentmods](https://agentmods.dev/badge/skills/egocen-vivideo/vivideo-toolchain/avoiding-duplicate-generations/github.svg)](https://agentmods.dev/skills/egocen-vivideo/vivideo-toolchain/avoiding-duplicate-generations)
Your own site
<a href="https://agentmods.dev/skills/egocen-vivideo/vivideo-toolchain/avoiding-duplicate-generations"><img src="https://agentmods.dev/badge/skills/egocen-vivideo/vivideo-toolchain/avoiding-duplicate-generations/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 avoiding-duplicate-generations

Your own site · 80×15
<a href="https://agentmods.dev/skills/egocen-vivideo/vivideo-toolchain/avoiding-duplicate-generations"><img src="https://agentmods.dev/badge/skills/egocen-vivideo/vivideo-toolchain/avoiding-duplicate-generations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 352 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 $0.00044 $0.00352
Opus 5.5 $0.00018 $0.00141
Sonnet 5.5 $0.00009 $0.00070
Haiku 4.5 $0.00004 $0.00035

Measured 2mo ago against content hash e08582336aa6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

avoiding-duplicate-generations 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 2mo 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.

skills/avoiding-duplicate-generations/SKILL.md · 24 lines

What it actually says

Avoid duplicate generations

Creating a video costs credits. Retries, parallel steps, or re-runs can accidentally create the same video twice. Prevent it.

Use an idempotency key

  • When you call create_auto_video / create_manual_video (or POST /v1/videos), pass a stable idempotency_key that is unique to this logical request (e.g. derived from the user request id or a hash of the inputs).
  • If the create is retried with the same key, the API replays the original response instead of making a second video — no duplicate, no double charge.
  • Reuse the same key across all retries of one attempt; use a new key for a genuinely new request.

Handle the 409

  • If you didn't send a key and fire the same content twice, the second call returns 409 duplicate_request with details.existing_video_id — use that existing video instead of retrying.
  • idempotency_in_flight means a request with that key is still processing — wait briefly and check status; don't hammer.

Rules

  • ✅ One idempotency key per logical create; reuse on retry.
  • ✅ On 409, adopt the existing video id — don't create again.
  • ❌ Don't loop-create hoping one succeeds; that risks multiple charges.
  • ❌ Don't generate a fresh key on every retry — that defeats the protection.
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. 2mo ago First seen · 24 lines · 44 tokens per session scan A e08582336aa6

Subscribe to this mod's changes

avoiding-duplicate-generations is a skill published in the GitHub repository egocen-vivideo/vivideo-toolchain (0 stars, last pushed 3mo ago), licensed MIT. It adds 44 tokens to every session and 352 once invoked, about $0.0002 per session on Opus 5.5. 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.

Creative and media
Related

avoiding-duplicate-generations compared with skills from other repositories

avoiding-duplicate-generations next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
avoiding-duplicate-generationsegocen-vivideo/vivideo-toolchainSkill03mo agoMITA44Claude Code, Codex
imagegenopenai/codexSkill134ktodayApache-2.0A113Codex
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79kyesterdayMITA200Claude Code, Codex
playwright-climicrosoft/playwrightSkill100kyesterdayApache-2.0A19Claude Code
browser-automationopenclaw/openclawSkill394ktodayMITA36Claude Code
systematic-debuggingobra/superpowersSkill315k5d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code