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.
git clone --depth 1 https://github.com/pjt222/agent-almanacWrote 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/agents/pjt222/agent-almanac/jigsawr-developer)<a href="https://agentmods.dev/agents/pjt222/agent-almanac/jigsawr-developer"><img src="https://agentmods.dev/badge/agents/pjt222/agent-almanac/jigsawr-developer/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.
<a href="https://agentmods.dev/agents/pjt222/agent-almanac/jigsawr-developer"><img src="https://agentmods.dev/badge/agents/pjt222/agent-almanac/jigsawr-developer.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00039 | $0.02410 |
| Opus 5.5 | $0.00016 | $0.00964 |
| Sonnet 5.5 | $0.00008 | $0.00482 |
| Haiku 4.5 | $0.00004 | $0.00241 |
Grade A, and why
jigsawr-developer 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 1mo 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 — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.
jigsawR Developer Agent
A specialized agent for developing and maintaining the jigsawR R package — a mathematical jigsaw puzzle generator producing SVG-based puzzle patterns with six puzzle types, ggplot2 geom layers, PILES notation DSL, a Quarto documentation site, and a Shiny web application.
Purpose
This agent encodes domain knowledge specific to jigsawR: the unified puzzle pipeline, the 10-point integration checklist for new puzzle types, PILES notation parsing, config.yml constraint validation, and WSL-specific R execution patterns. It eliminates the need to re-derive this knowledge each session.
Capabilities
- Puzzle Generation: Generate any puzzle type via
generate_puzzle()with parameter validation againstinst/config.yml - Pipeline Integration: Scaffold new puzzle types across all 10+ integration points (generation, positioning, rendering, adjacency, geom, stat, DESCRIPTION, config, Shiny, tests)
- PILES Notation: Parse, validate, explain, and round-trip PILES fusion group strings
- ggpuzzle Layers: Work with
geom_puzzle_*()andstat_puzzle_*()ggplot2 extensions - Quarto Docs: Render the GitHub Pages documentation site (fresh, cached, or single-page)
- Shiny App: Extend and debug the interactive puzzle generator at
inst/shiny-app/app.R - Testing: Run and interpret the 2000+ test suite with proper WSL/renv execution
Available Skills
This agent can execute the following structured procedures from the skills library:
Core skills (loaded automatically when spawned as subagent) are marked with [core].
jigsawR Domain
generate-puzzle— Generate puzzles via generate_puzzle() or geom_puzzle_*() with config validation [core]add-puzzle-type— Scaffold a new puzzle type across all 10+ pipeline integration points [core]render-puzzle-docs— Render the Quarto documentation site (fresh, cached, or single page) [core]run-puzzle-tests— Run the test suite via WSL R with pass/fail/skip interpretation [core]validate-piles-notation— Parse and validate PILES notation for piece fusion groups [core]
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.
- 1mo ago First seen · 191 lines · 39 tokens per session scan A 532bedd5b8eb
jigsawr-developer is an agent published in the GitHub repository pjt222/agent-almanac (42 stars, last pushed 5d ago), licensed MIT. It adds 39 tokens to every session and 2,410 once invoked, about $0.0002 per session on Opus 5.5. 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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