Signature Transforms for Advanced Reasoning Modules

Functions for transforming signatures to enable different reasoning patterns. These are composable transforms that modify the output type of a signature to include additional fields like chain-of-thought reasoning.

with_instructions() replaces a signature's instructions while preserving its input and output fields. append_instructions() layers additional instructions after the existing text, separated by a blank line. Both functions return a new Signature and never mutate the original.

Usage

with_instructions(x, instructions)

append_instructions(x, instructions)

Arguments

x

A Signature object or string notation such as "question -> answer".

instructions

A single, non-missing character string. Empty text is allowed when the resulting signature remains valid; for append_instructions() it is a no-op.

Value

A new Signature object.

Examples

base <- signature(
  "text -> summary",
  instructions = "Summarize the text."
)

concise <- append_instructions(base, "Use at most 30 words.")
base@instructions
#> [1] "Summarize the text."
concise@instructions
#> [1] "Summarize the text.\n\nUse at most 30 words."

replaced <- with_instructions(base, "Return one sentence.")