Snippets

Reusable text blocks expanded via #hashtag in messages.

Locations

Snippets

• •Global: ~/.config/opencode/snippet/*.md
• •Project: .opencode/snippet/*.md (overrides global)

Configuration

• •Global: ~/.config/opencode/snippet/config.jsonc
• •Project: .opencode/snippet/config.jsonc (merges with global, project takes priority)

IMPORTANT: When modifying snippet configuration:

1. •Check BOTH locations for existing config files
2. •If only one exists, modify that one
3. •If both exist, ask the user which one to modify
4. •If neither exists, create the global config

Logs

• •Debug logs: ~/.config/opencode/logs/snippets/daily/YYYY-MM-DD.log

Configuration

All boolean settings accept: true, false, "enabled", "disabled"

Full config example with all options:

{
  // JSON Schema for editor autocompletion
  "$schema": "https://raw.githubusercontent.com/JosXa/opencode-snippets/main/schema/config.schema.json",

  // Logging settings
  "logging": {
    // Enable debug logging to file
    // Logs are written to ~/.config/opencode/logs/snippets/daily/
    // Default: false
    "debug": false
  },

  // Experimental features (may change or be removed)
  "experimental": {
    // Enable <inject>...</inject> blocks for persistent context messages
    // Default: false
    "injectBlocks": false,
    // Enable skill rendering with <skill>name</skill> syntax
    // Default: false
    "skillRendering": false
  },

  // Hide shell command in output, showing only the result
  // Default: false
  "hideCommandInOutput": false
}

Snippet Format

---
aliases:
  - short
  - alt
description: Optional
---
Content here

Frontmatter optional. Filename (minus .md) = primary hashtag.

Features

• •#other - include another snippet (recursive, max 15 depth)
• •!`cmd` - shell substitution, output injected

Prepend/Append Blocks

Move content to message start/end instead of inline. Best for long reference material that breaks writing flow.

---
aliases: jira
---
Jira MCP
<prepend>
## Jira Field Mappings

- customfield_16570 => Acceptance Criteria
- customfield_11401 => Team
</prepend>

Input: Create bug in #jira about leak Output: Prepended section at top + Create bug in Jira MCP about leak.

Use <append> for reference material at end. Content inside blocks should use ## headings.

Inject Blocks (Experimental)

Add persistent context that the LLM sees throughout the entire agentic loop, without cluttering the visible message.

---
aliases: safe
---
Think step by step.
<inject>
IMPORTANT: Double-check all code for security vulnerabilities.
Always suggest tests for any implementation.
</inject>

Input: Review this code #safe Output: User sees "Review this code Think step by step." but the LLM also receives the inject content as separate context that persists for the entire conversation turn.

Use for rules, constraints, or context that should influence all responses without appearing inline.

Enable in config:

{
  "experimental": {
    "injectBlocks": true
  }
}

Skill Rendering (Experimental)

Inline OpenCode skills directly into messages using XML tags:

Create a Jira ticket. <skill>jira</skill>
<!-- or -->
<skill name="jira" />

Enable in config:

{
  "experimental": {
    "skillRendering": true
  }
}

Skills are loaded from OpenCode's standard directories (~/.config/opencode/skill/ and .opencode/skill/).

Commands

• •/snippet add <name> [content] - create global snippet
• •/snippet add --project <name> - create project snippet
• •/snippet list - show all available
• •/snippet delete <name> - remove snippet

Good Snippets

Short, focused, single-purpose. Examples:

# careful.md
---
aliases: safe
---
Be careful, autonomous, and ONLY do what I asked.

# context.md
---
aliases: ctx
---
Project: !`basename $(pwd)`
Branch: !`git branch --show-current`

Compose via includes: #base-rules inside #project-config.

Sharing Snippets

Share to GitHub Discussions: https://github.com/JosXa/opencode-snippets/discussions/categories/snippets

When user wants to share:

1. •Check gh --version works
2. •If gh available: MUST use question tool to ask user to confirm posting + ask "When do you use it?". Then:
   bash

   gh api graphql -f query='mutation($repoId: ID!, $catId: ID!, $title: String!, $body: String!) { createDiscussion(input: {repositoryId: $repoId, categoryId: $catId, title: $title, body: $body}) { discussion { url } } }' -f repoId="R_kgDOQ968oA" -f catId="DIC_kwDOQ968oM4C1Qcv" -f title="filename.md" -f body="<body>"
   

   Body format:
   code

   ## Snippet Content
   
   \`\`\`markdown
   <full snippet file content>
   \`\`\`
   
   ## When do you use it?
   
   <user's answer>
   

3. •If gh unavailable: Open browser:
   code

   https://github.com/JosXa/opencode-snippets/discussions/new?category=snippets&title=<url-encoded-filename>.md
   

   Ask user (without question tool) for "When do you use it?" info. Tell them to paste snippet in markdown fence.