cyanogilvie

Use the tomcrypt Tcl package (a libtomcrypt wrapper) for hashing, HMAC, HKDF, base64url, symmetric ciphers, AEAD, ECC, RSA, and PRNG operations from Tcl scripts. Use when writing or debugging Tcl code that calls tomcrypt::* commands, or when the user mentions tomcrypt, libtomcrypt, or asks to do crypto from Tcl.

Parse, manipulate, and build URIs in Tcl using the reuri package. Use when working with URLs/URIs in Tcl, building or rewriting query strings, percent-encoding, splitting paths, or any time the user mentions reuri, URI manipulation, or http URL handling in Tcl.

Deep knowledge of how the aws-tcl package works internally — shape parsing, the compile_input pipeline, per-protocol code paths (query/ec2/rest-xml/json/rest-json), pagination (aws foreach / aws lmap), response parsing, rule-engine primitives, and the rewriter transform system. Use this when adding or debugging service features, extending protocol support (smithy-rpc-v2-cbor), investigating serialization issues, or changing any of the build.tcl / aws.tcl machinery.

Encode and decode CBOR (RFC 8949) in Tcl using the cbor package. Provides JSON-based templates for encoding, low-level encode primitives, and path-based decoding. Use when working with CBOR binary data, building CBOR documents, or when the user mentions cbor commands or CBOR encoding/decoding.