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 sflinter/banktivity-swift-mcp --skill banktivitygit clone --depth 1 https://github.com/sflinter/banktivity-swift-mcpWrote 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/sflinter/banktivity-swift-mcp/banktivity)<a href="https://agentmods.dev/skills/sflinter/banktivity-swift-mcp/banktivity"><img src="https://agentmods.dev/badge/skills/sflinter/banktivity-swift-mcp/banktivity/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/skills/sflinter/banktivity-swift-mcp/banktivity"><img src="https://agentmods.dev/badge/skills/sflinter/banktivity-swift-mcp/banktivity.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 | $0.00038 | $0.02036 |
| Opus 5.5 | $0.00015 | $0.00814 |
| Sonnet 5.5 | $0.00008 | $0.00407 |
| Haiku 4.5 | $0.00004 | $0.00204 |
Grade A, and why
banktivity scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Banktivity CLI Skill
You have access to banktivity-cli, a fast CLI tool for querying and managing a Banktivity personal finance database.
Setup
- Binary:
~/.local/bin/banktivity-cli(on PATH) - Database:
~/Documents/Banktivity/My Accounts.bank8← edit this path - Required env var:
BANKTIVITY_FILE_PATHmust be set on every invocation
Invocation Pattern
BANKTIVITY_FILE_PATH="$HOME/Documents/Banktivity/My Accounts.bank8" banktivity-cli <tool> [--key value ...] 2>/dev/null
Always redirect stderr with 2>/dev/null — CoreData prints harmless warnings to stderr on every invocation.
Output Format
- All tools return JSON on stdout
- Most return a flat JSON array (
[{...}, {...}]), NOT{"transactions": [...]}or similar wrappers - For large result sets (>50 items), redirect to a temp file first, then parse with
python3, rather than piping directly into the conversation
Key Tools Reference
Querying
| Tool | Key Arguments | Notes |
|---|---|---|
list_accounts |
(none required) | Returns array of {id, name, fullName, accountType, balance, ...} |
get_transactions |
--account_id N --start_date YYYY-MM-DD --end_date YYYY-MM-DD --limit N |
Returns array of transaction objects with lineItems |
search_transactions |
--query "text" --limit N |
Searches title and notes only. Does NOT search tags. |
get_transaction |
--transaction_id N |
Single transaction with all line items |
get_transactions_by_tag |
--tag_id N or --tag_name "name" |
The correct way to find tagged transactions |
get_tags |
(none) | List all tags with id and name |
list_categories |
--type expense|income |
All categories; subcategories have fullName like "Motor:Tolls" |
get_category |
--category_id N or --category_name "Name" |
Lookup by ID or path (e.g. "Insurance:Life") |
get_category_tree |
--type expense|income |
Full hierarchy as a tree |
get_spending_by_category |
--start_date --end_date |
Spending breakdown by expense category |
get_income_by_category |
--start_date --end_date |
Income breakdown by income category |
get_uncategorized_transactions |
--account_id N --limit N |
Transactions without a category |
get_net_worth |
(none) | Assets minus liabilities |
get_account_balance |
--account_id N or --account_name "name" |
Balance for one account |
get_summary |
(none) | Database overview with account counts and totals |
get_payee_category_summary |
--account_id N --min_transactions N |
Per-payee category breakdown; surfaces inconsistencies |
review_categorizations |
--account_id N --category_name "name" --payee_pattern "pat" --limit N |
Review transactions by category for spotting errors |
suggest_category_for_merchant |
--merchant_name "name" |
Suggest category based on rules and history |
match_import_rules |
--description "text" |
Test which import rules match a description |
What ships with it
1 file 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.
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.
- 2mo ago First seen · 116 lines · 38 tokens per session scan A 965b4d820231
banktivity is a skill published in the GitHub repository sflinter/banktivity-swift-mcp (21 stars, last pushed 3d ago), licensed MIT. It adds 38 tokens to every session and 2,036 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.
banktivity compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| banktivitysflinter/banktivity-swift-mcp | Skill | 21 | 3d ago | MIT | A | 38 | Claude Code |
| sector-rotationHKUDS/Vibe-Trading | Skill | 38k | yesterday | MIT | A | 39 | Claude Code, Codex |
| twitter-readerhimself65/finance-skills | Skill | 3.5k | 2d ago | MIT | A | 110 | Claude Code |
| strategy-pivot-designertradermonty/claude-trading-skills | Skill | 3.7k | 2d ago | MIT | A | 28 | Claude Code, Codex |
| energy-procurementhashgraph-online/awesome-codex-plugins | Skill | 1.5k | yesterday | Apache-2.0 | A | 93 | Claude Code, Codex |
| airdrop-hunting-guidenirholas/three.ws | Skill | 269 | yesterday | Apache-2.0 | A | 54 | Claude Code, Codex |
| multi-expert-analyzerdigoal/blog | Skill | 8.6k | 2d ago | GPL-2.0 | A | 292 | Codex |