slim-sheet
PYPI · SLIM-SHEET
Spreadsheet MCP for any agent: reads xlsx/xls/ods/csv, SQL, cleaning, formulas, safe edits
Available components
Last scanned (17 hours ago)
Scores higher than 58% of PyPI servers
Category Data and Analytics
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security49
- Malware scan not yet available for this package.Unverified
- No known CVEs affecting this package version or its production dependencies.Pass
- Runs hatchling.build at install time, a recognised build step with no custom scripting around it. View diagnostics → Pass
- 4 of 34 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to j4flmao/slim-sheet). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 5 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability59
- 71% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Partial
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 3129 tokens (~97/item across 32 items; 30 tools + 2 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage71
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
- Structured output schemas are declared (20% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 32 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 −15
- Malware scan: pass → unverified ▼ security
- 3 Nov 26 +15
- Malware scan: unverified → pass ▲ security
- 2 Nov 26 −15
- Malware scan: pass → unverified ▼ security
- 1 Nov 26 +15
- Malware scan: unverified → pass ▲ security
- 31 Oct 26 −15
- Malware scan: pass → unverified ▼ security
- 30 Oct 26 76
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Analysed pypi/slim-sheet@0.1.0
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | pypi |
| Reason | Verified |
| Discovered via | GitHub artifact attestations |
| Source repo | j4flmao/slim-sheet |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/j4flmao/slim-sheet/.github/workflows/release.yml@refs/tags/v0.1.0 |
| Rekor log index | 3581366315 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha256:dd1fa675eceb22a7c340ec5f79facbc8483c926a861005647ebb0b27d703d21f |
Background: How many MCP packages publish verified provenance →
Install scripts 1 script
| Hook | Tier | Command |
|---|---|---|
| build_backend | allowlisted | hatchling.build |
Background: Why install scripts are a supply-chain risk →
Dependencies 34 packages
| Packages resolved | 34 |
|---|---|
| Stale | 3 |
| No linked repository | 1 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
add_chart ~127
Insert a clean branded chart (type=auto picks one) from data_range: header row + category column + series columns. Optional highlight='North'; replace=true swaps the chart at anchor.
| Name | Type | Req | Description |
|---|---|---|---|
| anchor | – | – | – |
| brand | – | – | – |
| data_range | string | yes | – |
| highlight | – | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| replace | boolean | – | – |
| sheet | string | yes | – |
| title | – | – | – |
| type | string | yes | – |
| x_title | – | – | – |
| y_title | – | – | – |
No output schema declared.
No examples provided.
annotate ~113
Add a note, hyperlink or image to a cell, or remove objects: op=note|link|image|remove. Example: op='link', cell='B2', url='https://...'
| Name | Type | Req | Description |
|---|---|---|---|
| cell | string | yes | – |
| image_path | – | – | – |
| op | string | yes | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| sheet | string | yes | – |
| target | string | – | – |
| text | – | – | – |
| url | – | – | – |
No output schema declared.
No examples provided.
anomalies ~79
Find suspicious cells (duplicates, types, outliers, typos); scope='formulas' audits models; scope='macros' rates VBA risks; scope='client' checks readiness for clients.
| Name | Type | Req | Description |
|---|---|---|---|
| columns | – | – | – |
| max_results | integer | – | – |
| path | string | yes | – |
| scope | string | – | – |
| sheet | – | – | – |
No output schema declared.
No examples provided.
build_report ~129
Build a branded, print-ready dashboard from a data sheet. Example: kpis=['Revenue=sum:Rev 2025|vs:Rev 2024:2024'], charts=['trend:Month:Total','table:Region:Total'], messages=['finding']
| Name | Type | Req | Description |
|---|---|---|---|
| brand | – | – | – |
| charts | – | – | – |
| data_sheet | string | yes | – |
| kpis | – | – | – |
| messages | – | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| sheet | string | – | – |
| subtitle | – | – | – |
| title | string | yes | – |
No output schema declared.
No examples provided.
clean ~94
Clean a table: ops from trim, collapse_spaces, remove_nonprintable, unify_null, numbers_from_text, normalize_dates, drop_empty_rows, drop_empty_cols, dedupe. Previews unless apply=true.
| Name | Type | Req | Description |
|---|---|---|---|
| apply | boolean | – | – |
| keys | – | – | – |
| ops | array | yes | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| sheet | – | – | – |
No output schema declared.
No examples provided.
convert ~103
Convert to xlsx/csv/tsv/parquet/json by out_path extension; CSV: delimiter=';', encoding='cp1252', decimal=','. split_by='Region' splits; a folder exports VBA.
| Name | Type | Req | Description |
|---|---|---|---|
| decimal | – | – | – |
| delimiter | – | – | – |
| encoding | – | – | – |
| mode | string | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| sheet | – | – | – |
| split_by | – | – | – |
No output schema declared.
No examples provided.
create_workbook ~62
Create a new empty branded .xlsx with the given sheet names. Example: create_workbook(path='out.xlsx', sheets=['Data','Summary'])
| Name | Type | Req | Description |
|---|---|---|---|
| brand | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| sheets | – | – | – |
No output schema declared.
No examples provided.
describe_cell ~71
Everything about one cell: value, formula, format, note, validation; trace='precedents' or 'dependents' follows formulas across sheets.
| Name | Type | Req | Description |
|---|---|---|---|
| cell | string | yes | – |
| depth | integer | – | – |
| path | string | yes | – |
| sheet | – | – | – |
| trace | string | – | – |
No output schema declared.
No examples provided.
diff ~71
Compare two files cell by cell, or row by row with key='ID'. Example: diff(path='a.xlsx', other_path='a.slim.xlsx')
| Name | Type | Req | Description |
|---|---|---|---|
| key | – | – | – |
| max_results | integer | – | – |
| other_path | string | yes | – |
| path | string | yes | – |
| sheet | – | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| changes | array | – | – |
No examples provided.
evaluate ~73
Calculate a formula offline, or check it with check_only=true (target='2016'). Example: evaluate(path='x.xlsx', cell='Calc!C7')
| Name | Type | Req | Description |
|---|---|---|---|
| cell | – | – | – |
| check_only | boolean | – | – |
| formula | – | – | – |
| path | – | – | – |
| sheet | – | – | – |
| target | – | – | – |
No output schema declared.
No examples provided.
explain_formula ~61
Explain and check an Excel formula: steps, references, syntax/arity errors. Pass formula='=...' or path plus cell like 'Sheet1!C7'.
| Name | Type | Req | Description |
|---|---|---|---|
| cell | – | – | – |
| formula | – | – | – |
| path | – | – | – |
| sheet | – | – | – |
No output schema declared.
No examples provided.
find ~72
Find cells containing text (or a regex) across sheets; returns Sheet!A1 addresses. Example: find(path='sales.xlsx', text='refund')
| Name | Type | Req | Description |
|---|---|---|---|
| max_results | integer | – | – |
| path | string | yes | – |
| regex | boolean | – | – |
| sheet | – | – | – |
| text | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hits | array | – | – |
No examples provided.
format_range ~148
Style a range: role ('title','header','total'...), bold, colors, number_format ('percent','m'...), align, border, merge, autofit.
| Name | Type | Req | Description |
|---|---|---|---|
| align | – | – | – |
| autofit | boolean | – | – |
| bold | – | – | – |
| border | – | – | – |
| fill_color | – | – | – |
| font_color | – | – | – |
| font_size | – | – | – |
| italic | – | – | – |
| merge | – | – | – |
| number_format | – | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| range | string | yes | – |
| role | – | – | – |
| sheet | string | yes | – |
| valign | – | – | – |
| wrap | – | – | – |
No output schema declared.
No examples provided.
merge ~123
Join two tables on keys (how=left|inner|full|anti), or how=reconcile to label rows matched/different/only_left/only_right. keys=['ID'] or ['ID=Order No'].
| Name | Type | Req | Description |
|---|---|---|---|
| compare | – | – | – |
| how | string | – | – |
| keys | array | yes | – |
| max_tokens | – | – | – |
| other_path | string | yes | – |
| other_sheet | – | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| sheet | – | – | – |
| tolerance | number | – | – |
No output schema declared.
No examples provided.
name_ops ~75
List, add or delete defined names. Example: name_ops(path, op='add', name='TaxRate', ref='Rates!B2')
| Name | Type | Req | Description |
|---|---|---|---|
| name | – | – | – |
| op | string | yes | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| ref | – | – | – |
No output schema declared.
No examples provided.
overview ~50
Map a spreadsheet file (or list the spreadsheets in a folder; no path lists all allowed folders): sheets, used ranges, header row, columns and types. Call this first.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | – |
| path | string | – | – |
| sheets | array | – | – |
| warnings | array | – | – |
No examples provided.
pivot ~118
Summarise a table: rows=['Region'], values=['Total'], agg=sum|count|avg|min|max, columns='Month'. to_sheet saves it; native=true makes a real Excel PivotTable.
| Name | Type | Req | Description |
|---|---|---|---|
| agg | string | – | – |
| columns | – | – | – |
| max_tokens | – | – | – |
| native | boolean | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| rows | array | yes | – |
| sheet | – | – | – |
| to_sheet | – | – | – |
| values | array | yes | – |
No output schema declared.
No examples provided.
profile ~52
Column statistics for a sheet: type, nulls, distinct, min, max, mean, median, top values. Optional columns list.
| Name | Type | Req | Description |
|---|---|---|---|
| columns | – | – | – |
| path | string | yes | – |
| sheet | – | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| columns | array | – | – |
No examples provided.
query ~72
Run one read-only SQL SELECT; tables are sheet names, quote names with spaces. Example: sql='SELECT "Region", sum("Total") FROM "Orders" GROUP BY 1'
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | – | – | – |
| offset | integer | – | – |
| path | string | yes | – |
| sql | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| columns | array | – | – |
| next_offset | integer|null | – | – |
| rows | array | – | – |
| total_rows | integer | – | – |
No examples provided.
range_ops ~164
Edit a block: op=fill|copy|move|transpose|sort|replace|insert|delete|clear|split. Example: op='fill', range='D2:D200'. where="Status='Closed'" filters rows.
| Name | Type | Req | Description |
|---|---|---|---|
| by | – | – | – |
| delimiter | string | – | – |
| desc | boolean | – | – |
| find | – | – | – |
| formats_only | boolean | – | – |
| header | boolean | – | – |
| op | string | yes | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| range | – | – | – |
| replace | – | – | – |
| sheet | string | yes | – |
| to | – | – | – |
| values_only | boolean | – | – |
| what | string | – | – |
| where | – | – | – |
No output schema declared.
No examples provided.
read ~80
Read cells as a table with A1 coordinates (sheet, range 'A1:F50', cursor). sheet='#vba' lists macros; range='Module1' shows its code.
| Name | Type | Req | Description |
|---|---|---|---|
| cursor | – | – | – |
| format | string | – | – |
| max_tokens | – | – | – |
| path | string | yes | – |
| range | – | – | – |
| sheet | – | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| next_cursor | string|null | – | – |
| rows | array | – | – |
| sheet | string | – | – |
| window | string | – | – |
No examples provided.
recalc ~46
Recalculate every formula with LibreOffice so cached values are fresh (needs LibreOffice installed).
| Name | Type | Req | Description |
|---|---|---|---|
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
No output schema declared.
No examples provided.
rules ~141
Add a dropdown/input rule (kind=list|whole|decimal|date|text_length|custom) or highlight rule (greater_than|between|duplicates|top_n|color_scale|data_bar|formula...).
| Name | Type | Req | Description |
|---|---|---|---|
| allow_blank | boolean | – | – |
| fill_color | string | – | – |
| font_color | string | – | – |
| formula | – | – | – |
| kind | string | yes | – |
| message | – | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| range | string | yes | – |
| sheet | string | yes | – |
| value | – | – | – |
| value2 | – | – | – |
| values | – | – | – |
No output schema declared.
No examples provided.
set_table ~107
Turn a range with a header row into a named Excel table; same name again resizes it. Example: set_table(path, sheet='Data', range='A1:D50', name='Sales', totals=true)
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| range | string | yes | – |
| sheet | string | yes | – |
| style | string | – | – |
| totals | boolean | – | – |
No output schema declared.
No examples provided.
sheet_layout ~158
Set how a sheet looks and prints: freeze, widths=['A=14'], heights, filter_range, hide, gridlines, zoom, print_area, landscape, fit_width, protect; workbook: calc_mode, protect_structure.
| Name | Type | Req | Description |
|---|---|---|---|
| calc_mode | – | – | – |
| filter_range | – | – | – |
| fit_width | – | – | – |
| freeze | – | – | – |
| gridlines | – | – | – |
| heights | – | – | – |
| hide | – | – | – |
| landscape | – | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| print_area | – | – | – |
| protect | – | – | – |
| protect_structure | – | – | – |
| sheet | string | yes | – |
| unhide | – | – | – |
| widths | – | – | – |
| zoom | – | – | – |
No output schema declared.
No examples provided.
sheet_ops ~84
Add, rename, delete, copy, move, hide or unhide a sheet (op=...). Renames also fix formulas that point to the sheet.
| Name | Type | Req | Description |
|---|---|---|---|
| new_name | – | – | – |
| op | string | yes | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| position | – | – | – |
| sheet | string | yes | – |
No output schema declared.
No examples provided.
style_sheet ~110
Make a table look professional in one call: header, number formats, totals, widths, print setup, and restyles the sheet's charts. preset=report|data|finance|striped|minimal|charts.
| Name | Type | Req | Description |
|---|---|---|---|
| brand | – | – | – |
| number_format | string | – | – |
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| preset | string | – | – |
| range | – | – | – |
| sheet | string | yes | – |
| total_row | – | – | – |
No output schema declared.
No examples provided.
undo ~31
Undo the last slim-sheet write to a file (every editing tool is journaled).
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | – |
No output schema declared.
No examples provided.
what_if ~86
Change inputs in memory and see outputs move: op=delta|goal_seek|grid. Example: inputs=['Inputs!B3=8%'], outputs=['Model!B20']. Never writes.
| Name | Type | Req | Description |
|---|---|---|---|
| inputs | array | yes | – |
| op | string | – | – |
| outputs | array | yes | – |
| path | string | yes | – |
| sheet | – | – | – |
| target | – | – | – |
No output schema declared.
No examples provided.
write ~86
Write a 2-D values array starting at range's top-left cell, e.g. values=[['Total', 120]]. Saves to <name>.slim.xlsx unless overwrite=true.
| Name | Type | Req | Description |
|---|---|---|---|
| out_path | – | – | – |
| overwrite | boolean | – | – |
| path | string | yes | – |
| range | string | yes | – |
| sheet | string | yes | – |
| values | array | yes | – |
No output schema declared.
No examples provided.
How do I install the slim-sheet MCP server?
slim-sheet runs locally as a PyPI package, launched with uvx slim-sheet. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · slim-sheet
claude mcp add j4flmao-slim-sheet -- uvx slim-sheet
What is the slim-sheet MCP server?
slim-sheet is an MCP server listed in the public MCP registry as io.github.j4flmao/slim-sheet. Spreadsheet MCP for any agent: reads xlsx/xls/ods/csv, SQL, cleaning, formulas, safe edits. This page covers its PyPI package (slim-sheet).
Is the slim-sheet MCP server safe to use?
slim-sheet scores 61 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 November 2026. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the slim-sheet MCP server expose?
slim-sheet exposes 30 tools: overview, read, find, query, profile, and 25 more. Their descriptions and schemas cost roughly 2,786 tokens of context every time the server is loaded.
Is the slim-sheet MCP server still maintained?
slim-sheet is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the slim-sheet MCP server under?
slim-sheet declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.