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 agents/spillwavesolutions/automating-mac-apps-plugin/sheet-convert-agentgit clone --depth 1 https://github.com/SpillwaveSolutions/automating-mac-apps-pluginWhat 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 | $0.00012 | $0.00127 |
| Opus 5 | $0.00006 | $0.00063 |
| Sonnet 5 | $0.00002 | $0.00025 |
| Haiku 4.5 | $0.00001 | $0.00013 |
Grade A, and why
sheet-convert-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 3d 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
Sheet Convert Agent
Converts spreadsheets between Excel and Numbers.
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.
- 3d ago First seen · 24 lines · 12 tokens per session scan A f3a710c8bf6e
sheet-convert-agent is an agent published in the GitHub repository SpillwaveSolutions/automating-mac-apps-plugin (40 stars, last pushed 11d ago), licensed MIT. It adds 12 tokens to every session and 127 once invoked, about $0.0001 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.
Other agents, from other repositories
data-analyst
Use when the user asks to describe, profile, summarize, explore, or query tabular data without producing modified output files — e.g., "what's in this CSV", "show distributions", "what columns correlate", or ad-hoc SQL questions. Prefer data-wrangler when the user wants to clean, reshape, dedupe, join, or convert data.
overview
ExStruct is a Python library that extracts semantic structure from Excel workbooks. It combines openpyxl, Excel COM (xlwings), and a LibreOffice backend to generate structured data that LLMs can work with easily.
architect
Analyzes Excel workbooks and creates safe execution plans.
engineer
Executes approved calculations and Excel modifications.
validator
Independently validates calculations and workbook modifications.
brd-reader
Extracts a requirement inventory from a customer-supplied BRD — one [BR#n] row per requirement, with a source anchor and unconfirmed defect candidates. Splits a requirement carrying more than one obligation. Read-only; never writes the source. Uses Claude Sonnet. Extraction is mechanical; defect classification is the…