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 skills add Caravaca-Labs/puzzletide-cli --skill puzzletide-sudokugit clone --depth 1 https://github.com/Caravaca-Labs/puzzletide-cliWrote 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/caravaca-labs/puzzletide-cli/puzzletide-sudoku)<a href="https://agentmods.dev/skills/caravaca-labs/puzzletide-cli/puzzletide-sudoku"><img src="https://agentmods.dev/badge/skills/caravaca-labs/puzzletide-cli/puzzletide-sudoku.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 5.1 | $0.00063 | $0.00748 |
| Opus 5 | $0.00032 | $0.00374 |
| Sonnet 5 | $0.00013 | $0.00150 |
| Haiku 4.5 | $0.00006 | $0.00075 |
Grade A, and why
puzzletide-sudoku 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 7d 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 — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PuzzleTide Sudoku
Generate, solve, and validate sudoku with the local PuzzleTide CLI.
Never generate or solve a sudoku by hand. Hand-made puzzles usually have multiple solutions or none; hand-solving is slow and error-prone. The CLI verifies every generated puzzle has exactly one solution, and its solver is instant.
Prefer the local CLI. Check availability in this order:
ptide --version
puzzletide --version
npx puzzletide --version
If none of those work, ask the user before installing (npm install -g puzzletide).
Grid format
81 characters, row by row; digits 1-9 are givens, . / 0 / _ are empty.
Whitespace and separators are ignored on input.
Generate
ptide sudoku generate --difficulty hard # easy | medium | hard | expert
ptide sudoku generate --seed 42 --pdf sudoku.pdf # printable with solution page
ptide run puzzle.sudoku.generate --difficulty expert --json
Solve
ptide sudoku solve "53..7....6..195....98....6.8...6...34..8.3..17...2...6.6....28....419..5....8..79"
ptide sudoku solve --file puzzle.txt --json
The solver also reports whether the solution is unique.
Validate (is this a proper sudoku?)
ptide sudoku validate --file puzzle.txt --json
Reports conflicts among givens, solvability, and solution uniqueness. Use this to check user-provided puzzles before solving, or to verify a candidate answer grid follows the rules.
Daily puzzle
ptide daily # same medium puzzle for everyone on a given UTC day
Links
- Play online: PuzzleTide sudoku
- Worksheets: printable puzzles at puzzletide.com
- Source and docs: GitHub · npm · CLI reference
Safety
- Everything runs locally; no account, API key, or network access.
- Do not install packages without asking the user first.
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.
- 7d ago First seen · 89 lines · 63 tokens per session scan A ce03b5dc619c
puzzletide-sudoku is a skill published in the GitHub repository Caravaca-Labs/puzzletide-cli (0 stars, last pushed 1mo ago), licensed MIT. It adds 63 tokens to every session and 748 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 2026-08-31.
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