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duckdb-r: Skill for Claude Code

.claude/skills/series-loop/SKILL.md

series-loop is a skill for Claude Code from duckdb/duckdb-r. It costs 0 tokens per session (6,915 once invoked), scanned A, original, no licence file.

A workflow for maintaining vendor series and their forward copies by bringing in the next upstream changes, promoting passing changes, and repairing failing ones. A vendor series is a set of local changes used to incorporate another project's code.

In plain words
What is it for?
It is for running, advancing, continuing, or repairing the vendor-series update loop.
Why use it?
It organizes the repeated work of keeping local changes aligned with upstream while handling changes that do not pass. A green ref is a branch reference whose checks pass.

Skill for Claude Code ✓ vendor

Written for Claude Code: installed under .claude/.

This is duckdb/duckdb-r's own configuration. It tells Claude Code how to work on duckdb-r itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything duckdb-r configures →

not rated 231repo +1 changed 16d ago A scan 0 tokens custom licence
View source ↗ duckdb/duckdb-r r.duckdb.org
Reuse

Borrowing it

Nothing to install: this file belongs to duckdb/duckdb-r. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/duckdb/duckdb-r/main/.claude/skills/series-loop/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/duckdb/duckdb-r

Made for: Claude Code.

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 series-loop

README.md
[![agentmods](https://agentmods.dev/badge/skills/duckdb/duckdb-r/series-loop/github.svg)](https://agentmods.dev/skills/duckdb/duckdb-r/series-loop)
Your own site
<a href="https://agentmods.dev/skills/duckdb/duckdb-r/series-loop"><img src="https://agentmods.dev/badge/skills/duckdb/duckdb-r/series-loop/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for series-loop

Your own site · 80×15
<a href="https://agentmods.dev/skills/duckdb/duckdb-r/series-loop"><img src="https://agentmods.dev/badge/skills/duckdb/duckdb-r/series-loop.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,915 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00000 $0.06915
Opus 5.5 $0.00000 $0.02766
Sonnet 5.5 $0.00000 $0.01383
Haiku 4.5 $0.00000 $0.00692

Measured 16d ago against content hash 22bb1c223a5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

series-loop 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 16d 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/skills/series-loop/SKILL.md · 469 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

12 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 16d ago Changed · -1,316 lines 22bb1c223a5a
  2. 23d ago Changed · +9 lines a21d0aba20c5
  3. 24d ago Changed · +49 lines 70e1c1367d35
  4. 1mo ago Changed · +67 lines e0f55607d66e
  5. 1mo ago Changed · +11 lines 4afae8de9c49
  6. 1mo ago Changed · +31 lines bcbcdd8d071b
  7. 1mo ago Changed · +3 lines 78ab31a983bd
  8. 1mo ago Changed · +47 lines f4e844b4a26f
  9. 1mo ago Changed · +43 lines a0115279a534
  10. 1mo ago First seen · 1,525 lines · 0 tokens per session scan A 6fc15abaedd0

Subscribe to this mod's changes

series-loop is a skill published in the GitHub repository duckdb/duckdb-r (231 stars, last pushed 14d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 6,915 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 2026-09-13.

DatabasesGit and workflowduckdbolapr
Related

series-loop compared with skills from other repositories

series-loop next to 6 skills from other repositories
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duckdbalivirgo/Major-AI-SkillsSkill2yesterdayMITA45Claude Code
create-prprisma/ormSkill48kyesterdayApache-2.0A48Claude Code, Codex
draft-release-notesprisma/ormSkill48kyesterdayApache-2.0A174Claude Code, Codex
publish-npm-versionprisma/ormSkill48kyesterdayApache-2.0A182Claude Code, Codex