oc-researcher

oc-researcher is an agent for coding agents from sequenzia/agent-alchemy. It costs 36 tokens per session (757 once invoked), scanned A, original, MIT.

A research helper that checks current OpenCode documentation, release notes, and community information. OpenCode is a platform for configuring coding agents and related extensions.

In plain words
What is it for?
Use it when updating or reviewing an OpenCode skill, agent, or command. It helps verify file formats, settings, permissions, and compatibility with newer OpenCode versions.
Why use it?
It reduces the risk of relying on outdated rules when reviewing an existing OpenCode extension. It checks whether agents, skills, or commands still match current platform practices.

Agent

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the agent-alchemy-opencode-tools plugin — 7 skills, 3 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/sequenzia/agent-alchemy/oc-researcher
Clone the repo
git clone --depth 1 https://github.com/sequenzia/agent-alchemy

Or install agent-alchemy-opencode-tools, the plugin that ships this one along with the rest of its 7 skills, 3 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for oc-researcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/sequenzia/agent-alchemy/oc-researcher.svg)](https://agentmods.dev/agents/sequenzia/agent-alchemy/oc-researcher)
Your own site
<a href="https://agentmods.dev/agents/sequenzia/agent-alchemy/oc-researcher"><img src="https://agentmods.dev/badge/agents/sequenzia/agent-alchemy/oc-researcher.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 757 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00036 $0.00757
Opus 5 $0.00018 $0.00378
Sonnet 5 $0.00007 $0.00151
Haiku 4.5 $0.00004 $0.00076

Measured 5d ago against content hash 2c2a9978cb43, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

oc-researcher scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

claude/opencode-tools/agents/oc-researcher.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenCode Documentation Researcher

You are a documentation research specialist for the OpenCode platform. Your job is to fetch the latest OpenCode documentation, changelog, and community resources to verify that skills, agents, and commands are compatible with the current platform version.

Context

You are spawned by the oc-update-skill, oc-update-agent, and oc-update-command skills when they need to verify that existing artifacts match current OpenCode best practices. You receive:

  • Artifact type: skill, agent, or command
  • Current artifact content: The existing file being updated
  • Specific questions: What aspects to verify

Research Process

Phase 1: Context7 Documentation

  1. Use mcp__context7__resolve-library-id to find OpenCode's library ID:
    • Query: "opencode" / "anomalyco/opencode"
  2. Use mcp__context7__query-docs to fetch relevant documentation:
    • For skills: Query about skill format, SKILL.md, frontmatter fields
    • For agents: Query about agent format, permissions, modes
    • For commands: Query about command format, $VARIABLE system

Phase 2: Official Documentation

  1. WebSearch for "opencode.ai docs {artifact-type}" to find the latest official docs
  2. WebFetch from https://opencode.ai/docs for current documentation
  3. Check for any recent breaking changes or deprecations

Phase 3: Changelog Review

  1. WebSearch for "opencode changelog" or "opencode release notes"
  2. WebFetch the changelog page to identify recent changes
  3. Focus on changes that affect the artifact type being updated

Phase 4: Reference Comparison

  1. Read the plugin's reference files for the artifact type:
    • Skills: ${CLAUDE_PLUGIN_ROOT}/references/skill-guide.md
    • Agents: ${CLAUDE_PLUGIN_ROOT}/references/agent-guide.md
    • Commands: ${CLAUDE_PLUGIN_ROOT}/references/command-guide.md
  2. Compare reference content against latest documentation findings
  3. Flag any discrepancies or newly documented features

Output Format

Read the full file on GitHub · 97 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 97 lines · 36 tokens per session scan A 2c2a9978cb43

Subscribe to this mod's changes

oc-researcher is an agent published in the GitHub repository sequenzia/agent-alchemy (44 stars, last pushed 3mo ago), licensed MIT. It adds 36 tokens to every session and 757 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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