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Oc update skill

Skill sequenzia/agent-alchemy/claude/opencode-tools/skills/oc-update-skill

Updates an existing OpenCode skill to match current platform best practices, fixes deprecated patterns, and validates the result. Use when user says "update opencode skill", "fix opencode skill", "migrate skill to opencode", or wants to modernize an existing OpenCode SKILL.md file.From its SKILL.md

Install
npx -y skills add sequenzia/agent-alchemy --skill oc-update-skill

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

SKILL.md

5.7 KB, ~1.2k tokens by cl100k_base, as published. Nobody here has run it

Update OpenCode Skill

You are initiating the OpenCode skill update workflow. This process locates an existing skill, researches current platform best practices, analyzes the skill for outdated patterns, and applies updates with validation.

Critical Rules

AskUserQuestion is MANDATORY

IMPORTANT: You MUST use the AskUserQuestion tool for ALL questions to the user. Never ask questions through regular text output.


Phase 1: Load References

Read the OpenCode platform overview and skill guide:

  1. Read ${CLAUDE_PLUGIN_ROOT}/references/platform-overview.md
  2. Read ${CLAUDE_PLUGIN_ROOT}/references/skill-guide.md

Phase 2: Locate Skill

Find the skill to update.

If $ARGUMENTS is provided:

  1. Check if the argument is a file path — read it directly
  2. If it's a skill name — search for it in known discovery paths

If no arguments:

  1. Search for OpenCode skills in the workspace:
    • Glob for .opencode/skills/*/SKILL.md
    • Glob for .claude/skills/*/SKILL.md
    • Glob for .agents/skills/*/SKILL.md
  2. Present found skills using AskUserQuestion:
    • Header: "Select Skill"
    • Question: "Which skill would you like to update?"
    • Options: List found skills (up to 4; include "Other" for custom path)

Read the selected skill file and store its contents.


Phase 3: Research

Spawn the researcher agent to check latest OpenCode documentation:

Task:
  subagent_type: "agent-alchemy-opencode-tools:oc-researcher"
  prompt: |
    Research the latest OpenCode documentation for skill format compatibility.

    Artifact type: skill
    Current artifact content:
    ---
    {contents of the skill file}
    ---

    Specific questions:
    1. Are there any new skill frontmatter fields since v1.2.10?
    2. Have any existing fields been deprecated?
    3. Are there new best practices for skill body structure?
    4. Any changes to $VARIABLE placeholder handling?

    Reference guide: ${CLAUDE_PLUGIN_ROOT}/references/skill-guide.md

Phase 4: Analyze

Compare the existing skill against current best practices. Check for:

Frontmatter Issues

IssueDetectionFix
name field missingRequired — must match directory nameAdd name: matching the parent directory
name doesn't match directoryName and directory must be identicalFix to match
allowed-tools presentExperimental field (Agent Skills spec)Keep if intentional; note as experimental
model field presentNot supported for skillsRemove; configure in opencode.json
disable-model-invocationNot supportedRemove
argument-hint presentNot a valid OpenCode fieldRemove; improve description
arguments presentNot supported; use $VARIABLESRemove; convert to $VARIABLE patterns
Missing descriptionRequired fieldAdd based on skill content
Description too vagueShould include trigger phrasesImprove with specific use cases

Body Issues

IssueDetectionFix
File-path skill referencesRead .../SKILL.md patternsConvert to skill({ name: "..." })
${CLAUDE_PLUGIN_ROOT} refsClaude Code path variableRemove; use name-based loading
mcp__ tool namesDouble-underscore MCP formatConvert to {name}_{tool} single-underscore
Assumes question in subagentSubagents can't use questionRestructure to gather info upfront
No phase markersComplex skill without structureAdd numbered phases
Missing completion directiveNo "complete ALL phases" noteAdd critical completion note

Research-Based Issues

Apply any findings from the researcher agent:

  • New features to leverage
  • Deprecated patterns to remove
  • Updated best practices to adopt

Phase 5: Present Findings

Present the analysis results using text output, organized by severity:

## Update Analysis: {skill-name}

### Errors (must fix)
{list of errors with explanations}

### Warnings (should fix)
{list of warnings with explanations}

### Suggestions (consider)
{list of suggestions}

### Research Notes
{any findings from the researcher agent}

Use AskUserQuestion to get user approval:

  • Header: "Apply Updates"
  • Question: "Would you like to apply these updates?"
  • Options:
    • "Apply all" — Fix all issues (errors + warnings + suggestions)
    • "Errors and warnings only" — Fix errors and warnings, skip suggestions
    • "Errors only" — Fix only the must-fix items
    • "Cancel" — Don't make changes
  • multiSelect: false

Phase 6: Apply Updates

Based on user selection, apply the changes:

  1. Use Edit to modify the skill file
  2. Fix issues in order: frontmatter first, then body content
  3. Preserve the skill's intent — don't rewrite working content unnecessarily

Phase 7: Validate

Spawn the validator agent on the updated file:

Task:
  subagent_type: "agent-alchemy-opencode-tools:oc-validator"
  prompt: |
    Validate the following OpenCode artifact:

    Type: skill
    Path: {path to updated file}
    Reference guide: ${CLAUDE_PLUGIN_ROOT}/references/skill-guide.md

Present the validation results. If errors remain, offer to fix them.

Show a before/after summary of the changes made.

CRITICAL: Complete ALL 7 phases before finishing.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Keep looking

Skills are one crate of 325,949. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.