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.
npx skills add BetterPromptme/skills --skill i-will-change-the-background-behind-an-object-use-nowgit clone --depth 1 https://github.com/BetterPromptme/skillsWrote 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.
[](https://agentmods.dev/skills/betterpromptme/skills/i-will-change-the-background-behind-an-object-use-now)<a href="https://agentmods.dev/skills/betterpromptme/skills/i-will-change-the-background-behind-an-object-use-now"><img src="https://agentmods.dev/badge/skills/betterpromptme/skills/i-will-change-the-background-behind-an-object-use-now/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.
<a href="https://agentmods.dev/skills/betterpromptme/skills/i-will-change-the-background-behind-an-object-use-now"><img src="https://agentmods.dev/badge/skills/betterpromptme/skills/i-will-change-the-background-behind-an-object-use-now.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00113 | $0.01267 |
| Opus 5 | $0.00056 | $0.00633 |
| Sonnet 5 | $0.00023 | $0.00253 |
| Haiku 4.5 | $0.00011 | $0.00127 |
Grade A, and why
i-will-change-the-background-behind-an-object-use-now 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
What it does
This prompt instructs the AI to extract a specified foreground object from a first image without altering it, then replace that image’s background with the background from a second image, compositing the object so it blends realistically. The outcome is a seamless, undetectable composite that preserves fine edge detail (including hair or transparency), maintains original shadows/reflections and perspective, matches lighting/color temperature/grain/depth of field to the new scene, and provides non-destructive layered deliverables plus export-ready versions.
For more installation instructions go to https://skills.sh/betterpromptme/betterprompt/betterprompt to check out this skill.
Inputs
textInputs
Pass each text input using --input <key>=<value> flags.
| Variable key | Required? | Description | Defaults |
|---|---|---|---|
object |
Required | (none) |
imageInputs
This prompt requires exactly 2 images. You must pass exactly 2 image flags (no more, no fewer), in the order matching the descriptions below.
| Index | Required | Description | Allowed CLI flags |
|---|---|---|---|
| 1 | Yes | The original image | --image-input-url <url> or --image-input-base64 <base64> or --image-input-path <absolute path to image> |
| 2 | Yes | The background | --image-input-url <url> or --image-input-base64 <base64> or --image-input-path <absolute path to image> |
Models and options
This skill's modality is: image.
To discover which model values you can use (and which options keys/values are valid for each model), run:
betterprompt resources --models-only --json
Then filter the returned JSON array to entries where modality is "image".
How to run
Step 1: Collect inputs
First, run betterprompt resources --models-only --json and filter to modality: "image" to discover valid models and available options:
betterprompt resources --models-only --json
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.
- 12d ago First seen · 108 lines · 113 tokens per session scan A 4fae7136c2be
i-will-change-the-background-behind-an-object-use-now is a skill published in the GitHub repository BetterPromptme/skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 113 tokens to every session and 1,267 once invoked, about $0.0006 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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