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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.