Agent skill

Exstruct CLI

Use ExStruct CLI to validate, inspect, create, and edit Excel workbooks safely.

BSD-3-ClauseAuto-check passedDocuments & Office

Install Exstruct CLI

skills CLI

$ npx skills add harumiWeb/exstruct --skill exstruct-cli -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install harumiWeb/exstruct exstruct-cli --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/harumiWeb/exstruct.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/exstruct-cli .claude/skills/exstruct-cli && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "exstruct-cli" agent skill from https://github.com/harumiWeb/exstruct/tree/main/.agents/skills/exstruct-cli into .claude/skills/exstruct-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exstruct-cli", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/harumiWeb/exstruct/tree/main/.agents/skills/exstruct-cli

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add harumiWeb/exstruct --skill exstruct-cli -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install harumiWeb/exstruct exstruct-cli --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/harumiWeb/exstruct.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/exstruct-cli .agents/skills/exstruct-cli && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "exstruct-cli" agent skill from https://github.com/harumiWeb/exstruct/tree/main/.agents/skills/exstruct-cli into .agents/skills/exstruct-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exstruct-cli", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add harumiWeb/exstruct --skill exstruct-cli -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install harumiWeb/exstruct exstruct-cli --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/harumiWeb/exstruct.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/exstruct-cli .cursor/skills/exstruct-cli && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "exstruct-cli" agent skill from https://github.com/harumiWeb/exstruct/tree/main/.agents/skills/exstruct-cli into .cursor/skills/exstruct-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exstruct-cli", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/harumiWeb/exstruct.git --path .agents/skills/exstruct-cli

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add harumiWeb/exstruct --skill exstruct-cli -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install harumiWeb/exstruct exstruct-cli --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/harumiWeb/exstruct.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/exstruct-cli .gemini/skills/exstruct-cli && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "exstruct-cli" agent skill from https://github.com/harumiWeb/exstruct/tree/main/.agents/skills/exstruct-cli into .gemini/skills/exstruct-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exstruct-cli", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install harumiWeb/exstruct exstruct-cli

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add harumiWeb/exstruct --skill exstruct-cli -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/harumiWeb/exstruct.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/exstruct-cli .github/skills/exstruct-cli && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "exstruct-cli" agent skill from https://github.com/harumiWeb/exstruct/tree/main/.agents/skills/exstruct-cli into .github/skills/exstruct-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exstruct-cli", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add harumiWeb/exstruct --skill exstruct-cli -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install harumiWeb/exstruct exstruct-cli --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/harumiWeb/exstruct.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/exstruct-cli .opencode/skills/exstruct-cli && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "exstruct-cli" agent skill from https://github.com/harumiWeb/exstruct/tree/main/.agents/skills/exstruct-cli into .opencode/skills/exstruct-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exstruct-cli", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: exstruct-cli
GitHub stars: 201
Token cost: ~526 tokens
SKILL.md length: 243 words
Files: 7 (incl. references)
Skills in repo: 8
Repo updated: Oct 4, 2026
First seen: Oct 7, 2026
Licence: BSD-3-Clause

At a glance

Use ExStruct CLI to validate, inspect, create, and edit Excel workbooks safely.

Works in 6 steps: Decide whether the request is create,… → Identify the needed op or inspect the… → Validate the workbook when the file,… → …
An agent needs exstruct patch
SKILL.md covers Select a command, Safety rules, Workflow and References
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Exstruct CLI is an agent skill from harumiWeb/exstruct. Use ExStruct CLI to validate, inspect, create, and edit Excel workbooks safely. Trigger when an agent needs exstruct patch, exstruct make, exstruct validate, exstruct ops list, or exstruct ops describe, especially for create-vs-edit decisions, dry-run workflows, backend constraints, or safe workbook-edit guidance.

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `agents/openai.yaml`, `references/backend-constraints.md` and `references/command-selection.md`).

It sits in Documents & Office, covering Excel spreadsheets. It works with Microsoft Excel and Model Context Protocol. The repository describes itself as: Conversion from Excel to structured JSON (tables, shapes, charts) for LLM/RAG pipelines, and autonomous Excel reading/writing by AI agents via CLI and MCP integration. The licence is BSD-3-Clause.

When your agent uses it

An agent needs exstruct patch
Exstruct validate
Exstruct ops list
Exstruct ops describe

Example prompts

“/exstruct-cli”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

Decide whether the request is create, edit, or actually an MCP-hosted task.
Identify the needed op or inspect the public op schema.
Validate the workbook when the file, backend, or request is uncertain.
Run --dry-run for risky edits and inspect PatchResult.
Apply the real edit only after the planned change is acceptable.
Verify the result with the lightest step that still matches the user's risk.

What it can do on your machine

Read from SKILL.md and the folder at commit 9cdf9aa. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Exstruct CLI loads about 526 tokens when it runs, and up to ~2.3k if it reads all its reference files. Until then it costs about 85 tokens; SKILL.md has 243 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~85
When it runs · the whole SKILL.md, loaded when a task matches: ~526
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~2.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from harumiWeb/exstruct at commit 9cdf9aa, republished under its BSD-3-Clause licence (© harumiWeb). 243 words, ~526 tokens.

Download SKILL.mdSave it as .claude/skills/exstruct-cli/SKILL.md (or your agent's skills folder). This skill also uses 6 other files; get the full folder from GitHub.

name: exstruct-cli
description: Use ExStruct CLI to validate, inspect, create, and edit Excel workbooks safely. Trigger when an agent needs `exstruct patch`, `exstruct make`, `exstruct validate`, `exstruct ops list`, or `exstruct ops describe`, especially for create-vs-edit decisions, dry-run workflows, backend constraints, or safe workbook-edit guidance.

ExStruct CLI

Use the existing editing CLI as the default local operational interface for ExStruct workbook create/edit requests.

Select a command

Use exstruct make when the user wants a new workbook created and populated.
Use exstruct patch when the user wants an existing workbook edited.
Use exstruct validate when workbook readability is uncertain or before a risky edit on an unfamiliar file.
Use exstruct ops list when the required operation is still unclear.
Use exstruct ops describe <op> when you know the likely op name but need the exact schema or constraints.
Hand the workflow off to MCP when the user needs host-owned path policy, transport mapping, artifact mirroring, or other server-managed behavior.

Safety rules

Do not invent unsupported patch ops.
Do not apply destructive edits immediately when the request is ambiguous.
Prefer --dry-run before risky edits.
Pin --backend openpyxl when the dry run and the real apply must use the same engine.
Explain backend-specific failures directly instead of hiding them behind a generic retry.

Workflow

Decide whether the request is create, edit, or actually an MCP-hosted task.
Identify the needed op or inspect the public op schema.
Validate the workbook when the file, backend, or request is uncertain.
Run --dry-run for risky edits and inspect PatchResult.
Apply the real edit only after the planned change is acceptable.
Verify the result with the lightest step that still matches the user's risk.

References

references/command-selection.md
references/safe-editing.md
references/ops-guidance.md
references/verify-workflows.md
references/backend-constraints.md

Files

SKILL.md and 6 other files (references) in .agents/skills/exstruct-cli of harumiWeb/exstruct.

SKILL.md
agents/openai.yaml
references/backend-constraints.md
references/command-selection.md
references/ops-guidance.md
references/safe-editing.md
references/verify-workflows.md

Open the folder on GitHubat commit 9cdf9aa

Compare with similar skills

Exstruct CLI next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Exstruct CLI compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Exstruct CLI this skillharumiWeb/exstruct	201	—	~526	Automated safety check: Pass	BSD-3-Clause	3 days ago
Baalda Guidenaveedharri/baalda	153	—	~1.8k	Automated safety check: Pass	Apache-2.0	today
Automate Hancom Documentsinnae1121-bit/gsghwp	101	—	~7.9k	Automated safety check: Pass	MIT	1 mo ago
Nutrient Document Processingaffaan-m/ECC	274k	4 repos	~1.5k	Automated safety check: Pass	MIT	2 days ago
Nutrient Document Processingaffaan-m/ECC	274k	3 repos	~1.3k	Automated safety check: Pass	MIT	2 days ago
Nutrient Document Processingaffaan-m/ECC	274k	2 repos	~1.3k	Automated safety check: Pass	MIT	2 days ago

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Questions about Exstruct CLI

What does Exstruct CLI do?

Use ExStruct CLI to validate, inspect, create, and edit Excel workbooks safely. Exstruct CLI is an agent skill from harumiWeb/exstruct. Use ExStruct CLI to validate, inspect, create, and edit Excel workbooks safely.

When should I use Exstruct CLI?

Exstruct CLI fits situations like: an agent needs exstruct patch; exstruct validate; exstruct ops list; exstruct ops describe.

How do I install Exstruct CLI in Claude Code?

Run `npx skills add harumiWeb/exstruct --skill exstruct-cli -a claude-code`. Or copy the skill folder (.agents/skills/exstruct-cli in harumiWeb/exstruct) into .claude/skills/exstruct-cli in your project. Claude Code loads it when a task matches its description.

How do I install Exstruct CLI in Codex?

Run `npx skills add harumiWeb/exstruct --skill exstruct-cli -a codex`. Or copy the skill folder (.agents/skills/exstruct-cli in harumiWeb/exstruct) into .agents/skills/exstruct-cli in your project. Codex loads it when a task matches its description.

Can I use Exstruct CLI in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add harumiWeb/exstruct --skill exstruct-cli -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/exstruct-cli, .gemini/skills/exstruct-cli, .github/skills/exstruct-cli and .opencode/skills/exstruct-cli in your project.

What does Exstruct CLI need to run?

SKILL.md names no scripts, command-line tools or credentials: Exstruct CLI is instructions for the agent only.

Does Exstruct CLI access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Exstruct CLI safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Exstruct CLI use?

Exstruct CLI is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Exstruct CLI use?

About 526 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.8k tokens, read only when the agent opens those files.

What are the alternatives to Exstruct CLI?

Skills that share tags, products or a category with Exstruct CLI: Baalda Guide (naveedharri/baalda, 153 stars), Automate Hancom Documents (innae1121-bit/gsghwp, 101 stars), Nutrient Document Processing (affaan-m/ECC, 274k stars) and Nutrient Document Processing (affaan-m/ECC, 274k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Exstruct CLI?

harumiWeb (a GitHub user) maintains it in harumiWeb/exstruct, which has 201 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 4, 2026.

Source: harumiWeb/exstruct on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Exstruct CLI

Install Exstruct CLI

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

ExStruct CLI

Select a command

Safety rules

Workflow

References

Files

Compare with similar skills

Similar skills

Baalda Guide

Automate Hancom Documents

Nutrient Document Processing

Nutrient Document Processing

Nutrient Document Processing

MCP Gateway

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Questions about Exstruct CLI

Install Exstruct CLI

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

ExStruct CLI

Select a command

Safety rules

Workflow

References

Files

Compare with similar skills

Similar skills

More from harumiWeb/exstruct

Related

Questions about Exstruct CLI