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/payrequest/copana/add-agentnpx skills add PayRequest/copana --skill add-agentgit clone --depth 1 https://github.com/PayRequest/copanaWhat 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 | $0.00000 | $0.00457 |
| Opus 5 | $0.00000 | $0.00229 |
| Sonnet 5 | $0.00000 | $0.00091 |
| Haiku 4.5 | $0.00000 | $0.00046 |
Grade A, and why
add-agent 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.
What it actually says
/add-agent — Create a Custom Subagent
Create a specialized Claude Code subagent for your Copana setup.
Steps
-
Ask the user:
- What should the agent do? (e.g., "review my code", "manage my calendar", "track habits")
- Should it have web access? (WebSearch, WebFetch)
- Should it be able to edit files? (Write, Edit)
- Should it use a smaller model for speed? (haiku vs sonnet)
- Should it have persistent memory? (remembers across sessions)
-
Create
.claude/agents/agent-name.mdwith YAML frontmatter:--- name: agent-name description: One-line description model: haiku # or omit for default tools: - Read - Write # only if needed - Edit # only if needed - Glob - Grep - WebSearch # only if needed - WebFetch # only if needed memory: project # or omit for no persistence --- -
Write the agent instructions below the frontmatter:
- Clear role description
- What files it manages
- Output format
- Rules and constraints
-
Test the agent:
- Run it with a sample task
- Verify it stays within its tool permissions
- Check that output is useful
-
Commit changes.
Built-in Agents
Copana ships with three agents:
| Agent | Purpose | Model |
|---|---|---|
memory-manager |
Consolidate and clean memory files | haiku |
research |
Web research with structured output | default |
daily-review |
End-of-day file review and summary | haiku |
Tips
- Use
model: haikufor simple, repetitive tasks (faster and cheaper) - Only grant tools the agent actually needs — fewer tools = more focused
memory: projectlets the agent build up knowledge across sessions- Keep agent instructions under 100 lines
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 · 61 lines · 0 tokens per session scan A fcc1e60c0f96
add-agent is a skill published in the GitHub repository PayRequest/copana (10 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 457 tokens. 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 2026-08-31.
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