webcrypt-mcp
Skill24 starsChanged 3 months agoMITView on GitHub
Teaches the agent to use the WebCrypt MCP server for AES-256-GCM symmetric encryption, RSA-4096 hybrid encryption, key generation, digital signatures, hashing, and post-quantum cryptography. Includes automated test scripts for exercising all MCP tools.
5 other projects use a version of this, 5 of them edited.
Adopted by
Most recently taken up by
- putervision/vision-memory-mcpedited, first seen Oct 8, 2026
- putervision/state-memory-mcpedited, first seen Sep 28, 2026
- putervision/world-model-mcpedited, first seen Sep 26, 2026
- putervision/behavior-mcpedited, first seen Sep 26, 2026
- putervision/agent-reasoning-mcpedited, first seen Sep 26, 2026
Used with
Projects with it also use agent-reasoning-mcp, behavior-mcp and 1 more.
Other files people use alongside this one.
Files found in the same public projects as a version of this one, more often than they turn up anywhere else. Each project counts once, large collections count for less, and this file's own repository is left out.
putervisionSkillagent-reasoning-mcp
Teaches the agent to use the Strategic Agent Reasoning MCP server for BDI goals, utility scoring, risk evaluation, and replanning.
Also in 5 projects that use this
- putervisionSkill
behavior-mcp
Teaches the agent to use the Behavior MCP server for ~60Hz in-browser behavior trees, triggers, and recordings.
Also in 5 projects that use this
- +1 more from putervision
Other versions5 projects use a version of this.
Word for word · 0
None found.
Edited · 5
- putervision/state-memory-mcp★ 11498% same
- putervision/world-model-mcp★ 5096% same
- putervision/vision-memory-mcp★ 4896% same
- putervision/behavior-mcp★ 2498% same
- putervision/agent-reasoning-mcp★ 2298% same
Wrote their own version · 0
None found.
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository9 other files it gives its agents.
- .agents/AGENTS.mdAGENTS.md
- CLAUDE.mdCLAUDE.md
- .github/copilot-instructions.mdCopilot instructions
- .cursor/rules/state-graph-mcp.mdcCursor rule
- .cursor/rules/state-memory-mcp.mdcCursor rule
- .cursor/rules/vision-memory-mcp.mdcCursor rule
- state-memory-mcpSkill
- video-ingestSkill
- vision-memory-mcpSkill
The file
We split this skill into the rules it gives an agent
3 rules. 0 are common, 0 are distinctive, and 3 are very specific to this project.
0
Common
Most of the 5 edited versions we read keep these.
0
Distinctive
This author's own choices. Worth a look.
3
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Very specific: line 13
Key Management: Use manage_keys(action: "generate", type: "rsa" | "ecdh" | "ecdsa" | "rsa-pss" | "hmac") to generate cryptographically …
- Very specific: line 14
Integrity & Signatures: Before completing tasks that produce verifiable evidence (such as evidence packs or release binaries), compute …
- Very specific: line 48
Add "command(webcrypt-mcp)" or "command(npx webcrypt mcp)" to global agent permission grants.
“Common” is measured: kept by at least 6 in 10 of the 5 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Cryptographic Memory & Vault Tooling (webcrypt-mcp)
This project provides webcrypt-mcp, a native Model Context Protocol server for zero-dependency AES-256-GCM encryption, RSA-4096 hybrid public-key encryption, digital signatures, cryptographic hashes, and post-quantum cryptography.
1. Mandatory Workflow & Priority
- Confidential Artifacts: Whenever saving sensitive credentials, tokens, or private workflow states, encrypt them using
encrypt_payload(mode: "data", password: "...")orencrypt_payload(mode: "symmetric", password: "..."). - Key Management: Use
manage_keys(action: "generate", type: "rsa" | "ecdh" | "ecdsa" | "rsa-pss" | "hmac")to generate cryptographically strong JWK-formatted keys for inter-agent communication. - Integrity & Signatures: Before completing tasks that produce verifiable evidence (such as evidence packs or release binaries), compute signatures or HMAC tags using
sign_verify(action: "sign", algorithm: "ECDSA" | "HMAC"). - Triple Memory Triad:
state-memory-mcp: Workflow state tracking.vision-memory-mcp: Visual state caching.webcrypt-mcp: Encryption of sensitive DAG nodes, visual cache database vaults, and signature verification.
2. Complete Tool Reference
| Tool Name | Key Inputs | Description |
encrypt_payload | mode ('symmetric' | 'asymmetric' | 'data'), data, password?, public_key_jwk? | Encrypt plaintext, JSON object, or binary data. |
decrypt_payload | mode ('symmetric' | 'asymmetric' | 'data'), ciphertext, password?, private_key_jwk? | Decrypt ciphertext back to plaintext or structured JSON. |
manage_keys | action ('generate' | 'generate_random_password'), type ('rsa' | 'ecdh' | 'ecdsa' | 'rsa-pss' | 'hmac'), modulusLength?, namedCurve?, length? | Generate cryptographic keys (JWK format) or secure random passwords. |
crypto_hash | algorithm ('SHA-256' | 'SHA-384' | 'SHA-512' | 'SHA3-256' | 'SHA3-512'), data, encoding ('hex' | 'base64') | Compute cryptographic hash digests. |
sign_verify | action ('sign' | 'verify'), algorithm ('ECDSA' | 'RSA-PSS' | 'HMAC' | 'HMAC-SHA3'), data, signature?, password?, key_jwk? | Sign or verify messages with ECDSA, RSA-PSS, or HMAC. |
pqc_kem_sign | action ('generate_kyber_keypair' | 'kyber_encapsulate' | 'kyber_decapsulate' | 'hybrid_encapsulate' | 'hybrid_decapsulate' | 'generate_dilithium_keypair' | 'dilithium_sign' | 'dilithium_verify'), level?, public_key_b64?, private_key_b64?, ... | Post-quantum Kyber KEM, Dilithium signatures, and Hybrid KEM. |
3. Automated MCP Tool Exercise & Verification
To verify that the MCP server and all 6 tools are operating correctly in the current environment:
# Run automated full-suite MCP tool runner
node .agents/skills/webcrypt-mcp/scripts/exercise_tools.jsThis automated runner exercises all 6 tools, validates 25 distinct assertions across all algorithms (AES-256-GCM, RSA-4096, ECDH, ECDSA, RSA-PSS, HMAC, Kyber768, Dilithium3), and outputs structured diagnostic results.
For detailed request/response schemas and manual invocation patterns, see references/mcp-test-patterns.md.
4. Agent Permissions & Auto-Run Configuration
To allow WebCrypt MCP tools to run seamlessly without interactive confirmation:
- Add
"command(webcrypt-mcp)"or"command(npx webcrypt mcp)"to global agent permission grants.
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