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.
npx agentmods add skills/mazumba/opencode-dockerized/oh-my-opencode-slimnpx skills add mazumba/opencode-dockerized --skill oh-my-opencode-slimgit clone --depth 1 https://github.com/mazumba/opencode-dockerizedWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00061 | $0.02793 |
| Opus 5 | $0.00030 | $0.01396 |
| Sonnet 5 | $0.00012 | $0.00559 |
| Haiku 4.5 | $0.00006 | $0.00279 |
Grade A, and why
oh-my-opencode-slim 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 2d 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.
This is a copy
100% identical to oh-my-opencode-slim — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 327 lines — stays where its author put it; the contents beside it link to each section on GitHub.
oh-my-opencode-slim Configuration Skill
You help users configure, customize, and safely improve their oh-my-opencode-slim setup.
The goal is not just to answer configuration questions. When useful, help the user make their agent system better for future runs: tune models, adjust agent prompts, add focused custom agents, enable or restrict tools, and document restart requirements.
When to Use
Use this skill when the user asks about or is likely to benefit from changes to:
~/.config/opencode/oh-my-opencode-slim.jsonor.jsonc.opencode/or~/.config/opencode/plugin/agent configuration- agent models, variants, presets, or provider routing
- orchestrator delegation behavior or specialist-agent prompts
- custom agents under
agents.<name> - custom agent
promptandorchestratorPromptblocks - skills, MCP permissions, tool access, or disabled agents
- background orchestration, session reuse, multiplexer panes, or deepwork
- recurring workflow friction that could be fixed by a prompt/config change
Also use it proactively, with restraint, when a session reveals a repeatable improvement opportunity. Example: if the user repeatedly asks the same agent to follow a project-specific rule, suggest adding that rule to a prompt or config.
What Is Possible
oh-my-opencode-slim is configured through a plugin config file, usually:
~/.config/opencode/oh-my-opencode-slim.json
or:
~/.config/opencode/oh-my-opencode-slim.jsonc
Concrete files agents should know:
| Path | Use |
|---|---|
~/.config/opencode/opencode.json |
OpenCode core config: plugin registration and providers |
~/.config/opencode/oh-my-opencode-slim.jsonc |
User plugin config with comments/trailing commas; takes precedence over .json |
~/.config/opencode/oh-my-opencode-slim.json |
User plugin config generated by installer |
<project>/.opencode/oh-my-opencode-slim.json |
Project-local plugin overrides checked before user config |
~/.config/opencode/oh-my-opencode-slim/{agent}.md |
Full prompt replacement for a built-in agent |
~/.config/opencode/oh-my-opencode-slim/{agent}_append.md |
Append-only prompt tuning for a built-in agent |
~/.config/opencode/oh-my-opencode-slim/{preset}/{agent}.md |
Preset-specific full prompt replacement |
~/.config/opencode/oh-my-opencode-slim/{preset}/{agent}_append.md |
Preset-specific append-only prompt tuning |
~/.config/opencode/skills/<skill-name>/SKILL.md |
Installed skill prompt payload |
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.
- 2d ago First seen · 327 lines · 61 tokens per session scan A e9e8291ccd86
oh-my-opencode-slim is a skill published in the GitHub repository mazumba/opencode-dockerized (5 stars, last pushed 5d ago), licensed MIT. It adds 61 tokens to every session and 2,793 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to oh-my-opencode-slim, differing in 0 lines, and is treated as a copy.
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