What is attach-screenshots?

A workflow for capturing before-and-after screenshots of an engine rendering change and publishing them so a GitHub pull request can display them.

It is for running the configured demo against the base branch and changed tree, saving screenshots, and publishing media for a rendering pull request.

It gives reviewers visual evidence of what a rendering change looks like instead of requiring them to build and run the demo themselves.

How jakildev/IrredenEngine configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to jakildev/IrredenEngine. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/jakildev/IrredenEngine/master/.claude/skills/attach-screenshots/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/jakildev/IrredenEngine

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jakildev/irredenengine/attach-screenshots/github.svg)](https://agentmods.dev/skills/jakildev/irredenengine/attach-screenshots)

Your own site

<a href="https://agentmods.dev/skills/jakildev/irredenengine/attach-screenshots"><img src="https://agentmods.dev/badge/skills/jakildev/irredenengine/attach-screenshots/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/jakildev/irredenengine/attach-screenshots"><img src="https://agentmods.dev/badge/skills/jakildev/irredenengine/attach-screenshots.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 164 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,080 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.

Model	Per session	Once invoked
Fable 5.1	$0.00164	$0.01080
Opus 5.5	$0.00066	$0.00432
Sonnet 5.5	$0.00033	$0.00216
Haiku 4.5	$0.00016	$0.00108

Measured 2d ago against content hash c504c8af10b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

attach-screenshots 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.

.claude/skills/attach-screenshots/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

attach-screenshots (Irreden Engine)

The flow lives in docs/agents/skills/attach-screenshots.md. Read it first, then apply the deltas below.

Deltas (Irreden Engine)

Delta key	Engine value
repo	`jakildev/IrredenEngine`
raw URL base	`https://raw.githubusercontent.com/jakildev/IrredenEngine`
default branch	`master` (`origin/master`); also refuse to run on `main`
default demo	`IRShapeDebug`
visual-file globs	`engine/render/`, `engine/prefabs/irreden/render/`, `engine/render/src/shaders/*`, `creations/demos//src/*`, `creations/demos//main.cpp`, any `.glsl` / `*.metal`
screenshot output root	`docs/pr-screenshots` — gitignored on master; the `no-plan-files.yml` guard fails a PR that commits it
media branch	`media` (`origin/media`)
publish tool	`fleet-media-push <dir>` (`scripts/fleet/fleet-media-push`)
demo save path	`build/creations/demos/<demo-dir>/save_files/screenshots` (`fleet-run` cd's into the exe's directory, so `save_files/` lands beside the binary; the rotated `.prev.*` sibling is gitignored)
build tool	`fleet-build --target <demo-name>`
run tool	`fleet-run <demo-name> --auto-screenshot 10` — no `--timeout` (BUILD.md §Timeout choices)
clip preset	`scripts/fleet/clip-preset.lua`
clip frames	`180`

Engine notes

Demo target from directory: creations/demos/shape_debug/ → IRShapeDebug. Shot labels come from the demo's g_shots[] array in creations/demos/<demo-dir>/main.cpp.
Effect routing (shared-flow step 2, case 2): a diff in the sun-shadow / lighting / AO shader family — ir_sun_*, c_bake_sun_shadow_map, c_clear_sun_shadow_map, c_compute_sun_shadow, ir_sun_shadow_sample, c_compute_voxel_ao, c_lighting_to_trixel, c_*light_volume* — renders nothing visible in shape_debug. Use IRCanvasStress for both passes with --debug-overlay shadow|ao|light_level --no-auto-rotate --no-spin (overlay matching the effect; the freeze flags keep the pose comparable).
Two-ref mode's detached HEAD is the one fleet-pr-claim-feedback / fleet-pr-checkout-detached leave you on. A dispatched worker on its own feature branch commits first and runs --two-ref origin/master HEAD; the stash-based default mode is the Cursor path.
The demo picker knows only creations/demos/*/; game creations under creations/game/ are out of scope.
For "show me where the drift is", pipe a pair through tools/img_diff (red-on-grey diff image); for aggregate pass/fail use scripts/render-compare.py. Both consume this skill's PNGs.

Read the full file on GitHub · 68 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.

2d ago First seen · 68 lines · 164 tokens per session scan A c504c8af10b9

Subscribe to this mod's changes

attach-screenshots is a skill published in the GitHub repository jakildev/IrredenEngine (10 stars, last pushed today), licensed MIT. It adds 164 tokens to every session and 1,080 once invoked, about $0.0007 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 2026-11-07.

Creative and media Game development

attach-screenshots next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
attach-screenshotsjakildev/IrredenEngine	Skill	10	today	MIT	A	164	Claude Code
playtest-reportDonchitos/Claude-Code-Game-Studios	Skill	37k	21d ago	MIT	A	20	Claude Code
godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skills	Skill	7.8k	12d ago	Apache-2.0	A	95	Claude Code
texture-workflowarjun988/blender-skills	Skill	2.2k	3d ago	MIT	A	41	Claude Code
scenario-unreal-gameplayscenario-labs/skills	Skill	3.5k	yesterday	MIT	A	121	Claude Code
motionOpenDCAI/GameFactory-3A	Skill	1.0k	11d ago	Apache-2.0	A	0	Claude Code, Codex
unity-addressablesBesty0728/Unity-Skills	Skill	1.9k	yesterday	MIT	A	25	Claude Code, Codex

IrredenEngine: Skill for Claude Code