Common Lisp libraries

Agent Client Protocol v1 over newline-delimited JSON-RPC. Includes request correlation, cancellation, capability negotiation, and standard-I/O or in-process channels.

Protocols, value types, and wire clients for language-model providers. Includes context assembly, structured-output contracts, inference budgets, and content-addressed contexts.

Discovery, validation, and reading of reusable Agent Skills. Supports SKILL.md directories and a bounded native SKILL.sexp format.

Typed provider transcripts for Responses and Chat Completions, with constructors, canonicalization, compaction checkpoints, and records for server-executed calls.

A reasonably comprehensive Model Context Protocol client implemented in Common Lisp.

Prepares local images for multimodal model prompts. Recognizes PNG, JPEG, GIF and WebP from their leading bytes, fits them to provider size limits, and encodes data URLs.

Dependency-free ANSI text styling which automatically detects terminal capability and gracefully degrades graphics.

Parses Markdown into terminal-oriented semantic spans, with Unicode-aware wrapping, lists, inline markup, tables, fenced code, and streaming previews.

Portable, Unicode-aware terminal line editor: grapheme-cluster movement, completion, highlighting, persistent history, and inline suggestions.

Colorful, syntax-highlighted endpoint diffs for terminals. Compares whole documents and renders one bounded change block.

Style-neutral syntax highlighting for Common Lisp applications. One native library across many languages; the host supplies colors, the library supplies spans.

Small, direct Common Lisp bindings for FLTK 1.4, plus a deterministic flex-style layout engine for nested rows and columns. Adds optional layout calculation separate from widgets.

Desktop clipboard access for Common Lisp, including text and typed data. Uses platform interfaces without requiring compiled glue code.

Line-anchored text editing against an observed revision. Validates anchors and applies batches of edits in original-line coordinates.

Client for standard-I/O Language Server Protocol servers. Includes initialization, UTF-8 file synchronization, JSON-RPC requests, and push or pull diagnostics.

Authority-neutral, revisioned resources: URI resolution, observations, operation discovery, and recoverable staged change sets.

Structural queries and previewed rewrite plans over immutable source snapshots, with an optional ast-grep backend.

Bindings and a supervised worker for the fff search library. The supervised worker can be automatically restarted in case of (rare) fff failure.

Debug Adapter Protocol sessions with framing, request and event correlation, semantic operations, and adapter process ownership.

Live Common Lisp restart debugger with portable snapshots. Supports restart selection, source-backed repair, retrying operations, returning values, and aborting.

Org document templating with key interpolation and conditional blocks. Heading properties can control whether a subtree is included.

Missing and mismatched delimiter checker for Common Lisp, Scheme, and Clojure. Reports unexpected closers and unclosed openers with line and column.

SBCL introspection and reversible live redefinition. Includes defined-name lookup, lambda lists, restart selection, definition undo, and source-form location.

Policy-driven sandboxing for external processes. Policies control what children can read, write, and reach.

Bounded thread pool for supervised jobs. Cancellation, deadlines, progress, and exactly one terminal result per job.

Owned, detached Git worktrees and explicit integration primitives.

Wire and runtime protocols for Lisp image daemons, with authenticated loopback control, bounded packets, request deadlines, session identifiers, and terminal relays.

Advisory POSIX file locks through lockf. Includes scoped locking and process-wide mutex serialization for threads locking the same path.

Checkpoint a live SBCL image without stopping it. Numbered generations are boot-probed before publication; select which one boots next.

Persistent, isolated SBCL worker processes and immutable heap images. Long-lived helpers that outlive individual work and can be restored from a known-good image.

RFC 8259 JSON encoding and decoding with distinct false, null, and empty-array values. Optional limits bound document processing.

Short, human-typable identifiers with a reversibly scrambled timestamp. Seven Base58 characters; easy to read aloud and type.

Layered, typed configuration through documented CLOS settings. Includes source precedence, persistence, change listeners, and updates to dependent settings.

Read s-expression configuration without evaluation. A grammar declares the allowed vocabulary and bounds; anything outside is refused.

Crash-tolerant state files stored as readable s-expressions. Useful to create s-expression ledgers of actions taken by, say, a clanker.

Portable data structures using ANSI Common Lisp: deques, bounded sequence builders, heaps, ordered maps, caches, string indexes, and integer interval collections.

Browser-based OAuth for installed applications, with S256 PKCE, IPv4 loopback redirects, and authorization-code exchange. Integrates with cl-rfc8628 credential storage.

OAuth 2.0 device authorization through a CLOS protocol, with replaceable HTTP, clock, browser, and sleep operations, plus credential storage.

Fetches web pages over HTTP and converts HTML to Markdown. Uses Dexador for requests and Plump for HTML parsing.

A Common Lisp client for Polar.sh: checkout sessions, checkout-link URLs, customer portal sessions, and Standard Webhooks signature verification.

A configurable license family whose operative terms are in Common Lisp. Select terms to produce variants ranging from FOSS to proprietary.

A portability facade for Common Lisp applications to make projects portable across SBCL, CCL, and usually ECL. Honestly a mixed bag, a number of La-Sy libs depend on it