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/leejuoh/claude-code-zero/duck-orientnpx skills add LeeJuOh/claude-code-zero --skill duck-orientgit clone --depth 1 https://github.com/LeeJuOh/claude-code-zeroWrote 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.
[](https://agentmods.dev/skills/leejuoh/claude-code-zero/duck-orient)<a href="https://agentmods.dev/skills/leejuoh/claude-code-zero/duck-orient"><img src="https://agentmods.dev/badge/skills/leejuoh/claude-code-zero/duck-orient.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00053 | $0.00969 |
| Opus 5 | $0.00026 | $0.00485 |
| Sonnet 5 | $0.00011 | $0.00194 |
| Haiku 4.5 | $0.00005 | $0.00097 |
Grade A, and why
duck-orient 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Duck — Orientation Mode
Read first: ../ducking/engine.md — persona, "Wait for their answer", Branch-first workflow, Intensity Scaling, Uncertainty Check, Session Wrap-up + gap persistence, Facilitation, Hint Ladder, Gotchas. They apply here.
Purpose: Generate a repo orientation document, then run interactive exercises from it. For developers new to a codebase or returning after a long break.
Storage: .claude/orientation.md in the project root. Can be committed and shared with teammates.
Flow
-
Surface confrontation telemetry: run
bash ${CLAUDE_PLUGIN_ROOT}/skills/ducking/scripts/telemetry-summary.sh 30and share the one-line result with the user before anything else (e.g., "By the way — Last 30 days: 5 fired, 3 answered, 1 ignored."). This is the answer to "is duck actually doing anything?" (S10) — one line, no elaboration, then move on to orientation. -
Check for
.claude/orientation.md -
If not found (or argument is
refresh):- Explore the repo following the methodology in ../ducking/references/orientation-guide.md
- Generate
.claude/orientation.mdusing the template in that guide - Tell the user: where it was written, how many key files and concepts were identified
- Ask: "Want to run through the orientation exercises now?"
- If they decline, stop. If they accept, continue to step 4.
-
If found (and not refreshing):
- Read
.claude/orientation.md - Run
bash ${CLAUDE_PLUGIN_ROOT}/skills/ducking/scripts/recent-gaps.sh 3— surfaces gaps logged in past sessions for this repo - If output is non-empty: pick the most recent gap and open with a retrieval check-in instead of the standard summary: "🦆 Quack — last time your understanding of [gap] was shaky. Can you explain that part now?" Wait for their answer. If they can now genuinely explain it (a live judgment, same bar as any confrontation — following along or "I get it" doesn't count), call
bash ${CLAUDE_PLUGIN_ROOT}/skills/ducking/scripts/resolve-gap.sh "<gap text>"so it stops resurfacing here and at ship-point — pass the gap text verbatim minus the leadingdate<TAB>prefix, since resolve-gap matches on an exact string. If they still can't, leave it unresolved and don't call the script. Then proceed to the exercise sequence. - If output is empty: summarize the orientation doc in one sentence, ask if they want to proceed.
- Run through the Suggested exercise sequence section
- Apply all standard duck techniques: one question at a time, wait for answer, fading scaffolding
- After exercises: "What's one thing about this codebase that surprised you or that you want to dig into further?"
- Use their answer to offer a relevant follow-up exercise or file to explore
- Read
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.
- 4d ago First seen · 47 lines · 53 tokens per session scan A 8ff0be5fd401
duck-orient is a skill published in the GitHub repository LeeJuOh/claude-code-zero (51 stars, last pushed 4d ago), licensed MIT. It adds 53 tokens to every session and 969 once invoked, about $0.0003 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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