How do I install the Sg Validate Graphics skill?

Run npx skillmds@latest add davistroy/sg-validate-graphics in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Sg Validate Graphics safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Sg Validate Graphics?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Sg Validate Graphics free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Sg Validate Graphics?

davistroy (@davistroy) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Sg Validate Graphics by davistroy — Agent Skill

Name: Sg Validate Graphics
Author: davistroy

Sg Validate Graphics

Validate that image descriptions are concrete enough for AI image generation. Use when you want to check if image descriptions are ready for generation, validate graphics before image generation, or avoid wasted API calls.

davistroy e1ed7fc 2.5 KB Updated Sep 17, 2026

File contents

Slide Generator: Validate Graphics Step

Validate that image descriptions in the presentation are concrete and specific enough for AI image generation. Identifies vague descriptions and rewrites them to be generation-ready.

Pre-loaded Context

Working directory: !pwd

Available presentation files: !ls -la *.md 2>/dev/null | grep -i pres || echo "No presentation files found"

Prerequisites

Preflight: sg --version must succeed before proceeding — if sg is missing, stop and tell the user this requires the private davistroy/slide-generator engine (owner-only; see ADR-0008)
slide-generator package installed
ANTHROPIC_API_KEY set in environment
A presentation.md file with graphics description fields

Input Validation

Required:

<presentation.md> - Path to presentation markdown file

Instructions

Verify input: Confirm the presentation markdown exists and has graphics description fields
Run validation:
```
sg validate-graphics presentation.md
```
Review results: Check which descriptions passed/failed validation
Report: Show pass/fail count and any descriptions that were rewritten

How It Works

The validator checks each graphics description for:

Specificity: Does it describe a concrete visual (not just "a diagram")?
Actionability: Can an image generator produce this without guessing?
Completeness: Does it specify composition, style, colors, and subject matter?
Chunk-scoped replacement: Fixes are scoped per-slide to prevent cross-contamination

Descriptions that fail are automatically rewritten to be more concrete while preserving intent.

Error Handling

Error	Cause	Fix
`No graphics descriptions found`	Presentation lacks image fields	Re-run draft step
`All descriptions failed`	Content too abstract	Consider manual description writing

Output

The validation step updates presentation.md in-place with:

Validated (or rewritten) graphics descriptions
A .graphics_validated marker file indicating completion

Next Step

After validation completes, run image generation:

sg generate-images presentation.md --resolution high

Or use /sg-generate-images to continue the pipeline.

---name: sg-validate-graphicsdescription: Validate that image descriptions are concrete enough for AI image generation. Use when you want to check if image descriptions are ready for generation, validate graphics before image generation, or avoid wasted API calls.---# Slide Generator: Validate Graphics StepValidate that image descriptions in the presentation are concrete and specific enough for AI image generation. Identifies vague descriptions and rewrites them to be generation-ready.## Pre-loaded Context**Working directory:**!`pwd`**Available presentation files:**!`ls -la *.md 2>/dev/null | grep -i pres || echo "No presentation files found"`## Prerequisites- **Preflight:** `sg --version` must succeed before proceeding — if `sg` is missing, stop and tell the user this requires the private `davistroy/slide-generator` engine (owner-only; see ADR-0008)- `slide-generator` package installed- `ANTHROPIC_API_KEY` set in environment- A `presentation.md` file with graphics description fields## Input Validation**Required:**- `<presentation.md>` - Path to presentation markdown file## Instructions1. **Verify input**: Confirm the presentation markdown exists and has graphics description fields2. **Run validation**: ```bash sg validate-graphics presentation.md ```3. **Review results**: Check which descriptions passed/failed validation4. **Report**: Show pass/fail count and any descriptions that were rewritten## How It WorksThe validator checks each graphics description for:- **Specificity**: Does it describe a concrete visual (not just "a diagram")?- **Actionability**: Can an image generator produce this without guessing?- **Completeness**: Does it specify composition, style, colors, and subject matter?- **Chunk-scoped replacement**: Fixes are scoped per-slide to prevent cross-contaminationDescriptions that fail are automatically rewritten to be more concrete while preserving intent.## Error Handling| Error | Cause | Fix ||-------|-------|-----|| `No graphics descriptions found` | Presentation lacks image fields | Re-run draft step || `All descriptions failed` | Content too abstract | Consider manual description writing |## OutputThe validation step updates `presentation.md` in-place with:- Validated (or rewritten) graphics descriptions- A `.graphics_validated` marker file indicating completion## Next StepAfter validation completes, run image generation:```bashsg generate-images presentation.md --resolution high```Or use `/sg-generate-images` to continue the pipeline.

Frequently asked questions