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Agent skill

Cryptpad

by magnus919 in magnus919/agent-skills

Use CryptPad encrypted collaboration for integration, automation, and diagnosis with its browser integration API, instance discovery, document import/export, and session-key lifecycle.

MITAuto-check passedDocuments & Office

Install Cryptpad

skills CLI
$ npx skills add magnus919/agent-skills --skill cryptpad -a claude-code

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

GitHub CLI
$ gh skill install magnus919/agent-skills cryptpad --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/magnus919/agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cryptpad .claude/skills/cryptpad && 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/

Facts

Skill name
cryptpad
GitHub stars
116
Token cost
~1.6k tokens
SKILL.md length
693 words
Files
13 (incl. scripts, references)
Skills in repo
130
Repo updated
First seen
Licence
MIT

At a glance

Use CryptPad encrypted collaboration for integration, automation, and diagnosis with its browser integration API, instance discovery, document import/export, and session-key lifecycle.

  • Works in 6 steps: Establish the instance origin, deployed… → Read architecture and interface… → For public instance discovery, run the… → …
  • CryptPad API feasibility
  • SKILL.md covers When not to use, Workflow, Tools and Integration essentials, plus 1 more section
  • Runs Python and JavaScript scripts from its folder; calls python3

What it does

Cryptpad is an agent skill from magnus919/agent-skills. Use CryptPad encrypted collaboration for integration, automation, and diagnosis with its browser integration API, instance discovery, document import/export, and session-key lifecycle. Use for CryptPad API feasibility, embedded editors, sharing, persistence, or self-hosted instance troubleshooting. Do not use for EncryptPad/OpenPGP, generic office-file conversion, or designing an unrelated collaboration service.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 16 other files, including scripts and reference files (for example `README.md`, `evals/evals.json` and `evals/trigger-queries.json`). Compatibility notes: Python 3.10+ for discovery tools; a browser and a compatible CryptPad instance for editing; Node.js for adapter tests.

It sits in Documents & Office, covering Document parsing. The repository describes itself as: Curated collection of AI agent skills for Hermes and other agent frameworks. The licence is MIT.

When your agent uses it

  • CryptPad API feasibility
  • Embedded editors
  • Self-hosted instance troubleshooting
  • EncryptPad/OpenPGP

Example prompts

  • “/cryptpad”

Requirements

  • Python 3
  • Node.js
  • Docker
  • Compatibility (from SKILL.md): Python 3.10+ for discovery tools; a browser and a compatible CryptPad instance for editing; Node.js for adapter tests.

Workflow steps

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

  1. Establish the instance origin, deployed version, document application, and task
  2. Read architecture and interface boundaries for feasibility.
  3. For public instance discovery, run the CLI below. For an embed, read
  4. This skill can guide actions that change external state: editing, importing, sharing,
  5. Verify the result on the normal browser path: document loads, edits synchronize,
  6. Deliver the artifact or diagnosis, with version/source evidence, tests actually run,

What it can do on your machine

Read from SKILL.md and the folder at commit c545c2b. 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

    Ships 2 files in scripts/ (Python and JavaScript), which the agent can run.

    Shell commands in SKILL.md call:

    • python3

    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.

  • Compatibility

    Python 3.10+ for discovery tools; a browser and a compatible CryptPad instance for editing; Node.js for adapter tests.

    From compatibility in the SKILL.md frontmatter.

Context cost

Cryptpad loads about 1.6k tokens when it runs, and up to ~5.6k if it reads all its reference files. Until then it costs about 106 tokens; SKILL.md has 693 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~106
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5.6k

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); the scripts in this folder are not scanned.

SKILL.md

The full file from magnus919/agent-skills at commit c545c2b, republished under its MIT licence (© magnus919). 693 words, ~1,556 tokens.

Download SKILL.mdSave it as .claude/skills/cryptpad/SKILL.md (or your agent's skills folder). This skill also uses 12 other files; get the full folder from GitHub.
name
cryptpad
description
Use CryptPad encrypted collaboration for integration, automation, and diagnosis with its browser integration API, instance discovery, document import/export, and session-key lifecycle. Use for CryptPad API feasibility, embedded editors, sharing, persistence, or self-hosted instance troubleshooting. Do not use for EncryptPad/OpenPGP, generic office-file conversion, or designing an unrelated collaboration service.
compatibility
Python 3.10+ for discovery tools; a browser and a compatible CryptPad instance for editing; Node.js for adapter tests.
license
MIT

CryptPad

When not to use

  • For local office-file creation or conversion, use documents or anydoc.
  • For general API contract design, use api-design-and-evolution.
  • For container operations, use docker-compose; keep CryptPad-specific configuration here.
  • EncryptPad is a different OpenPGP desktop application.

Workflow

  1. Establish the instance origin, deployed version, document application, and task: existing CryptDrive content, embedding an externally stored document, or instance operations. Never infer rights from a title, successful HTTP request, or editor UI alone.
  2. Read architecture and interface boundaries for feasibility. Prefer the documented browser integration API for external storage; use an authorized browser session for existing CryptDrive documents. Do not invent bearer-token CRUD routes.
  3. For public instance discovery, run the CLI below. For an embed, read integration contracts, then use the adapter and plan templates. For self-hosting failures, read operations.
  4. This skill can guide actions that change external state: editing, importing, sharing, key rotation, deployment and retention changes. Confirm the target, scope, and rollback path before acting. Read-only discovery may proceed without confirmation. Use existing explicit authorization when it covers these details. Destructive operations still require an explicit user directive. Prepare reversible work before escalating gaps.
  5. Verify the result on the normal browser path: document loads, edits synchronize, the save reaches durable storage, and a fresh session reopens the saved content. Check view-only access with a real view key. HTTP discovery is not this verification.
  6. Deliver the artifact or diagnosis, with version/source evidence, tests actually run, and remaining limitations. Stop after three non-converging diagnostic passes and report the exact failed boundary and next required evidence. Do not substitute raw ciphertext for exported document content or claim a schema-valid eval proves runtime behavior.

Tools

Run from this skill's root; tools use only Python's standard library and output JSON.

sh
python3 scripts/cryptpad.py probe --origin https://cryptpad.example.org
python3 scripts/cryptpad.py inspect-link < /secure/path/document-link.txt
python3 -m unittest discover -s scripts -p 'test_*.py'

CLI: probe GETs /api/config and /cryptpad-api.js, refuses redirects, bounds response size and timeout, and parses only JSON inside the known AMD wrapper without executing JavaScript. Exit 0 means both resources were recognized, 1 means incomplete discovery, 2 means invalid input. enableEmbedding: false is a configuration finding, not a network failure. No version or end-to-end health is inferred.

inspect-link is offline and reads stdin to avoid putting capability links in argv. It reports only origin, known application and presence of query/fragment, never their values or arbitrary paths. It does not validate the key or determine effective rights. Keep the input file protected; do not paste real keys into logs or shell history.

Tests exercise malformed input, secret redaction, response recognition, failure handling, and save/key callbacks. Node.js enables the adapter test; without it that test is explicitly skipped.

Show full SKILL.md (264 more words)Show less

Integration essentials

  • Load the instance's /cryptpad-api.js; call window.CryptPadAPI(containerId, config). This is a browser API, not a server-side REST document service.
  • The embedding service owns durable storage, user authorization and session-key sharing. Integration sessions are transient; normal CryptDrive persistence is a separate workflow.
  • Default to CryptPad-generated session keys with onNewKey. Atomically compare the old stored key and persist the winning edit/view pair. Return the winning edit key to the callback even when a concurrent update won. Never return each client's candidate blindly.
  • onSave receives a Blob. Acknowledge only after a durable save. Preserve visible unsaved state on failure; retries need idempotent or revision-aware storage.
  • mode: 'view' with an edit key only locks the UI. Use a real view key, and do not expose edit keys through the view user's storage API. Verify feature support on the deployed version.
  • Removing an application ACL entry does not terminate a running key-bearing session. Plan rotation and migration to a fresh session; do not claim retroactive secrecy.
  • E2EE on CryptPad's side does not encrypt your application's stored exports. If E2EE is required, encrypt/decrypt in the trusted client and design key distribution accordingly.

Templates and evidence

  • Use integration plan to define storage, key ownership, authorized changes and acceptance tests before implementation.
  • Adapt callback adapter for application-owned persistence and atomic key updates. It supplies no backend, credentials or encryption scheme.
  • Use browser configuration example to wire the adapter to the documented API. It is a scaffold requiring real application services.
  • Record source revisions and compatibility using research sources.
  • Output-quality cases cover integration and diagnostic behavior. Trigger probes are separate harness inputs.

© magnus919, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 12 other files (scripts, references) in cryptpad of magnus919/agent-skills.

  • SKILL.md
  • README.md
  • evals/evals.json
  • evals/trigger-queries.json
  • references/architecture.md
  • references/integration.md
  • references/operations.md
  • references/sources.md
  • scripts/cryptpad.py
  • scripts/test_cryptpad.py
  • templates/browser-integration.md
  • templates/integration-adapter.mjs
  • templates/integration-plan.md

Open the folder on GitHubat commit c545c2b

Compare with similar skills

Cryptpad 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.

Cryptpad compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cryptpad this skillmagnus919/agent-skills116—~1.6kAutomated safety check: PassMIT
MarkitdownImCa0/just-laws78214 repos~3.2kAutomated safety check: NotesMIT
DOCX ToolkitXiaomiMiMo/MiMo-Code14k—~2.4kAutomated safety check: PassApache-2.0
Huashu Markdown Publishing Pipelinealchaincyf/huashu-md-html907—~4.8kAutomated safety check: PassMIT
Markitdownjimmc414/Kosmos5952 repos~1.7kAutomated safety check: PassNone
Liteparsebastani-inc/atomic850—~1.4kAutomated safety check: PassMIT

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Categories

Questions about Cryptpad

What does Cryptpad do?

Use CryptPad encrypted collaboration for integration, automation, and diagnosis with its browser integration API, instance discovery, document import/export, and session-key lifecycle. Cryptpad is an agent skill from magnus919/agent-skills. Use CryptPad encrypted collaboration for integration, automation, and diagnosis with its browser integration API, instance discovery, document import/export, and session-key lifecycle.

When should I use Cryptpad?

Cryptpad fits situations like: cryptPad API feasibility; embedded editors; self-hosted instance troubleshooting; encryptPad/OpenPGP.

How do I install Cryptpad in Claude Code?

Run `npx skills add magnus919/agent-skills --skill cryptpad -a claude-code`. Or copy the skill folder (cryptpad in magnus919/agent-skills) into .claude/skills/cryptpad in your project. Claude Code loads it when a task matches its description.

How do I install Cryptpad in Codex?

Run `npx skills add magnus919/agent-skills --skill cryptpad -a codex`. Or copy the skill folder (cryptpad in magnus919/agent-skills) into .agents/skills/cryptpad in your project. Codex loads it when a task matches its description.

Can I use Cryptpad 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 magnus919/agent-skills --skill cryptpad -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cryptpad, .gemini/skills/cryptpad, .github/skills/cryptpad and .opencode/skills/cryptpad in your project.

What does Cryptpad need to run?

Going by SKILL.md and its folder, Cryptpad needs Python and JavaScript for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3; Node.js; Docker. Compatibility (from SKILL.md): Python 3.10+ for discovery tools; a browser and a compatible CryptPad instance for editing; Node.js for adapter tests..

Does Cryptpad 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 Cryptpad 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Cryptpad use?

Cryptpad is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Cryptpad use?

About 1.6k tokens (SKILL.md is roughly 6.2k 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 4k tokens, read only when the agent opens those files.

What are the alternatives to Cryptpad?

Skills that share tags, products or a category with Cryptpad: Markitdown (ImCa0/just-laws, 782 stars), DOCX Toolkit (XiaomiMiMo/MiMo-Code, 14k stars), Huashu Markdown Publishing Pipeline (alchaincyf/huashu-md-html, 907 stars) and Markitdown (jimmc414/Kosmos, 595 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cryptpad?

magnus919 (a GitHub user) maintains it in magnus919/agent-skills, which has 116 GitHub stars. The repository holds 130 skills in this directory. The repository was last updated on October 8, 2026.

Source: magnus919/agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.