Glossary

Accessibility tree

Browser-provided semantic representation of page roles, names, states, and relationships. Caveman browser bridge uses it as compact alternative to full page markup when visual pixels are unnecessary.

Agent profile

Declarative description of how CLI launches and configures supported agent, including wire protocol and endpoint injection plus any hooks, skills or plugins.

Basis

Label explaining how a number was produced, such as inferred, provider-reported, benchmark counterfactual, or verified.

Byte-safe

Model-visible bytes remain unchanged, as in record mode. Compression, TOON, pixel, and rewriting are not byte-safe.

Cave Plan

Connected product report ranking possible efficiency improvements. A plan item is a proposal and does not establish verified savings.

Cave Score

Connected product score summarizing measured efficiency signals under its published contract. It is distinct from local Engine token reduction.

Caveman Cloud

Optional connected account, evidence, and governance service. Local compression does not require it.

CCR

Caveman Context Recovery. Content-addressed store mapping compact references to exact original bytes or typed objects.

Compressor

Engine component that transforms one recognized input shape into smaller model-visible representation under declared policy.

Context pack

SDK structure for assembling bounded context parts with provenance and policy.

Fail closed

Unknown or invalid state rejects operation or produces safe non-success result. For transforms, safe result is often original input.

Headroom

Modeled opportunity to reduce context or cost. It is inferred until stronger evidence exists.

Hook

Code invoked by agent lifecycle event, such as session start, prompt submission, or pre-tool execution.

Inferred

Estimated by local model, tokenizer, or assumptions rather than confirmed by provider or verification method.

List-price subtotal

Usage units multiplied by dated public catalog price. It is not provider invoice.

MCP

Model Context Protocol. Caveman uses local standard-I/O server to expose compression, recovery, stats, and TOON operations to compatible agents.

Observed

Recorded before/after relationship without enough control to establish cause.

Pixel

Lossy text-to-PNG context encoding for explicitly allowed vision-capable models.

Provider-reported

Usage or event data returned by model provider response.

Record mode

Pass-through mode that observes local traffic without changing model-visible request bytes.

Recovery handle

ccr_... content-derived identifier used to retrieve exact original bytes.

Safety class

Category describing transformation risk. Current Engine compressors use S4, lossy with recovery.

Skill

Instruction package that changes model behavior or response style. It is not executable runtime unless it includes separately reviewed hooks or tools.

SSRF

Server-Side Request Forgery. Risk where configurable outbound URL lets caller reach unintended local or private service.

TOON

Token-Oriented Object Notation. Compact text encoding for suitable structured data. It changes model-visible bytes and is never used for tool-call arguments.

Unpriced

Marker stating catalog has no supported public price. Numeric fallback is zero to avoid invented cost, but resource is not assumed free.

Verified

Evidence basis reserved for values meeting named enforced verification method. Local compression estimate is not verified by itself.

Wire protocol

Provider request and response shape used between agent and proxy, such as Anthropic Messages, OpenAI Responses, OpenAI Chat Completions, or Gemini GenerateContent.