Markdown Scanner

What it does

When your agent uses it

• Tasks that involve Markdown
• Tasks that involve Accessibility

Example prompts

• “/markdown-scanner”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Multiple H1s: More than one # heading - auto-fix by demoting all-but-first to H2.
2. 2Skipped levels: H1 followed by H3, etc. - auto-fix by interpolating the missing level.
3. 3No H1: Flag for review (may be intentional fragment).
4. 4Bold text as heading: text on its own line - auto-fix by converting to appropriate heading level.
5. 5Non-descriptive heading text: ## Section 1, ## Details - flag for review.

What it can do on your machine

Read from SKILL.md and the folder at commit decf6ba. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Markdown Scanner loads about 1.6k tokens when it runs, and up to ~3.9k if it reads all its reference files. Until then it costs about 20 tokens; SKILL.md has 419 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~20

When it runs · the whole SKILL.md, loaded when a task matches

~1.6k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~3.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Community-Access/accessibility-agents at commit decf6ba, republished under its MIT licence (© Community-Access). 419 words, ~1,579 tokens.

name

markdown-scanner

description

Internal helper: scan one markdown file across all nine domains.

license

MIT

disable-model-invocation

true

user-invocable

false

metadata.tier

helper

metadata.domain

markdown

metadata.output

findings

metadata.effort

low

metadata.title

Markdown Scanner

## Markdown Scan Report: <filename>

**Lines scanned:** N
**Markdownlint violations:** N
**Total issues found:** N  |  **Auto-fixable:** N  |  **Needs review:** N  |  **PASS domains:** N

### Domain Findings

#### Domain 1: Descriptive Links
| # | Line | Severity | Current | Suggested Fix | Auto-fix |
|---|------|----------|---------|---------------|----------|
| 1 | 42 | Serious | `[here](https://...)` | `[installation guide](https://...)` | Yes |

#### Domain 2: Alt Text
| # | Line | Severity | Current | Suggested Fix | Auto-fix |
|---|------|----------|---------|---------------|----------|
| 1 | 18 | Critical | `![](logo.png)` | `![Project logo](logo.png)` | No - needs visual judgment |

#### Domain 3: Heading Hierarchy
| # | Line | Severity | Issue | Auto-fix |
|---|------|----------|-------|----------|
| 1 | 5 | Serious | H1 followed by H3 (skipped H2) | Yes - interpolate H2 |

#### Domain 4: Table Accessibility
| # | Line | Severity | Issue | Suggested Fix | Auto-fix |
|---|------|----------|-------|---------------|----------|
| 1 | 88 | Moderate | Table has no preceding description | Add one-sentence summary | Yes |

#### Domain 5: Emoji
| # | Line | Severity | Content | Action | Auto-fix |
|---|------|----------|---------|--------|----------|
| 1 | 12 | Moderate | `## 🚀 Quick Start` | Remove emoji from heading | Yes |
| 2 | 34 | Moderate | `- 🎉 New feature` | Remove emoji bullet | Yes |

#### Domain 6: Mermaid / ASCII Diagrams
| # | Line | Severity | Type | Description Draft | Auto-fix |
|---|------|----------|------|-------------------|----------|
| 1 | 56 | Critical | `graph TD` flowchart | "The following diagram shows: Setup leads to Build, then Deploy." | Yes - simple |
| 2 | 71 | Critical | ASCII art | No preceding description | No - needs human description |

#### Domain 7: Em-Dash Normalization
| # | Line | Severity | Current | Fix | Auto-fix |
|---|------|----------|---------|-----|----------|
| 1 | 23 | Moderate | `agent—when invoked—` | `agent - when invoked -` | Yes |

#### Domain 8: Anchor Links
| # | Line | Severity | Anchor | Issue | Suggestion |
|---|------|----------|--------|-------|------------|
| 1 | 77 | Serious | `#instalation` | Heading not found | Did you mean `#installation`? |

#### Domain 9: Plain Language / Lists
| # | Line | Severity | Issue | Auto-fix |
|---|------|----------|-------|----------|
| 1 | 102 | Minor | Emoji bullet `- ✅ Done` | Yes |

### Summary Scores

**Deductions:**
- Critical issues: N × 15 = -N pts
- Serious issues: N × 7 = -N pts
- Moderate issues: N × 3 = -N pts
- Minor issues: N × 1 = -N pts

**File Score:** [0-100]  |  **Grade:** [A-F]

© Community-Access, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 6 other files (references) in skills/markdown-scanner of Community-Access/accessibility-agents.

• SKILL.md
• agents/openai.yaml
• examples/findings.json
• references/domain-4-table-accessibility-wcag-1-3-1.md
• references/domain-8-anchor-link-validation-wcag-2-4-4.md
• references/input.md
• references/multi-agent-reliability.md

Open the folder on GitHubat commit decf6ba