"""agentloop -- a dependency-free agentic tool-use loop with a hash-chained transcript.

Lane: Codeforge.  Stdlib only, Python 3.8+.  No third-party imports anywhere.

The three moving parts:

  tools.py      a Tool registry and a JSON-Schema-subset argument validator
  loop.py       the budgeted agent loop (model -> tool calls -> tool results)
  transcript.py an append-only JSONL log whose records form a SHA-256 hash chain

The transcript is the point.  An agent run is evidence, and evidence that
cannot be checked is just a log: every record carries the hash of the record
before it, so a rewrite, a dropped record or a swap breaks the chain at the
first affected record and names it.  See README-agentloop.md for what the
chain does and does not prove.
"""

from .transcript import (
    GENESIS,
    KIND_ASSISTANT,
    KIND_FINAL,
    KIND_TOOL,
    KIND_USER,
    Transcript,
    TranscriptError,
    canonical_json,
    verify_file,
    verify_records,
)
from .tools import (
    Tool,
    ToolCall,
    ToolError,
    ToolNotFound,
    ToolRegistry,
    ToolResult,
    ValidationError,
    validate,
)
from .loop import (
    AgentLoop,
    LoopResult,
    ModelReply,
    StopReason,
    estimate_tokens,
)

__version__ = "1.0.0"

__all__ = [
    "GENESIS",
    "KIND_ASSISTANT",
    "KIND_FINAL",
    "KIND_TOOL",
    "KIND_USER",
    "Transcript",
    "TranscriptError",
    "canonical_json",
    "verify_file",
    "verify_records",
    "Tool",
    "ToolCall",
    "ToolError",
    "ToolNotFound",
    "ToolRegistry",
    "ToolResult",
    "ValidationError",
    "validate",
    "AgentLoop",
    "LoopResult",
    "ModelReply",
    "StopReason",
    "estimate_tokens",
    "__version__",
]