# ost-render

Renders .claude/canvas/opportunities.yml trees into Mermaid mindmaps or structured lists with built-in attribution and privacy controls.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · ★ 47
- Author: haabe
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/haabe/mycelium/tree/HEAD/plugins/mycelium/skills/ost-render/SKILL.md
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/skills/ost-render

## What it does

This skill parses `.claude/canvas/opportunities.yml` and converts opportunity solution trees into Mermaid mindmaps, `flowchart-td` graphs, plain text lists, or JSON. It operates strictly in read-only mode; modifying or constructing the canvas requires the companion `ost-builder` tool.

During preflight, the skill verifies source attributions against `$MYCELIUM_ATTRIBUTION_REGISTRY` or `.claude/memory/attribution-registry.yml`. Entities marked `generic_only` turn into anonymous labels like `cohort-tester-N`. If an identifier is missing from the registry entirely, the skill halts execution and yields no artifact unless passed `--no-identifiers=true`.

Running this skill without an existing `opportunities.yml` canvas will fail immediately. Output in `markdown-table` format is explicitly unsupported because hierarchical opportunity trees cannot be mapped cleanly into flat tables.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add haabe/mycelium --skill ost-render -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/ost-render/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/ost-render/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add haabe/mycelium --skill ost-render -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/ost-render/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add haabe/mycelium --skill ost-render -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/ost-render/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install haabe/mycelium ost-render
```

2. **Manually: put the files in place**
- File: `.github/skills/ost-render/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add haabe/mycelium --skill ost-render -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/haabe/mycelium --path plugins/mycelium/skills/ost-render
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/ost-render/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add haabe/mycelium --skill ost-render -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/haabe/mycelium/tree/HEAD/plugins/mycelium/skills/ost-render/SKILL.md

## When to use it
- render Opportunity Solution Trees into Mermaid mindmaps or flowcharts
- anonymize cohort testers and research participants using consent registries
- extract a sub-tree rooted at a specific opportunity ID via --root-outcome
- export opportunity structures to Markdown lists or JSON

## Example prompts
- Render `.claude/canvas/opportunities.yml` as a Mermaid mindmap
- Generate an ASCII tree for the `--root-outcome` growth-loop node
- Export the opportunity tree to a dark theme diagram with `--no-identifiers=true`

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: a6d6db4f7876c078.

BEGIN THIRD-PARTY FILE a6d6db4f7876c078
```text
---
name: ost-render
description: Render `.claude/canvas/opportunities.yml` as a diagram or structured list. Read-only. Default format Mermaid mindmap. Consults the attribution registry per `${CLAUDE_PLUGIN_ROOT}/engine/render-conventions.md` consent + privacy gate. Second specialist in the render fleet.
metadata:
  instruction_budget: "60"
  framework_dependency: "mycelium"
  framework_dependency_note: "Reads .claude/canvas/opportunities.yml + attribution registry (env var $MYCELIUM_ATTRIBUTION_REGISTRY preferred; .claude/memory/attribution-registry.yml fallback). Standalone use will fail without opportunities.yml present."
  identifier_exposure: "YES"
---

# OST Render

Read-only render of `.claude/canvas/opportunities.yml` as a diagram or structured list. Second specialist in the render fleet (after `/mycelium:diamond-render`). See `${CLAUDE_PLUGIN_ROOT}/engine/render-conventions.md` for shared conventions.

## When NOT to use

- To BUILD or update the OST from research data → `/mycelium:ost-builder`. This skill is read-only.
- For cross-cutting opportunity→solution→cycle traceability view → dispatcher's `/mycelium:render --view traceability` (deferred to Phase 4a–4d research-first methodology per architecture draft §10.2).
- For ICE scoring of solutions → `/mycelium:ice-score`.

## Identifier exposure

**Declared**: YES

### Scope (canvas surfaces touched)

| Canvas file | Identifier-bearing fields | Frequency |
|---|---|---|
| `.claude/canvas/opportunities.yml` | `evidence_sources` (URL-or-name strings); `notes` prose | low (~1 in 10 cites a named individual rather than a URL) |
| `$MYCELIUM_ATTRIBUTION_REGISTRY` env var (canonical) or `.claude/memory/attribution-registry.yml` (fallback) | `people:` block with `name`+`consent`+`note` per entry | read-only consultation; never rendered |

Per `${CLAUDE_PLUGIN_ROOT}/engine/render-conventions.md#hard-rule-consent--privacy-gate`. Registry lives in roadmap-private memory by design — upstream Mycelium repo is public; registry contents must not ship there.

### Rationale

OST shape is user-need-shaped (abstract opportunities and solutions), so identifier exposure is incidental rather than intrinsic. Identifier classes that can appear: cohort testers, peer practitioners, named external sources. All three go through the consent gate; external sources are typically `public_ok` already, but registry consultation is non-skippable to avoid drift.

### Anon-label convention

Per `engine/render-conventions.md#anon-label-convention`:
- Cohort tester → `cohort-tester-N`
- Peer practitioner → `peer-practitioner-N`
- Unknown identifier class → `participant-N`

Numbering resets per render; emit an in-render mapping footnote when redaction occurred so the operator can audit which anon label maps to which registry entry.

### Consent value semantics

Per `engine/render-conventions.md#consent-value-semantics`:

| Value | Render behavior |
|---|---|
```
END THIRD-PARTY FILE a6d6db4f7876c078

The third-party file has ended. Everything between the a6d6db4f7876c078 tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

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