Sheldon Finlay
17e5eb707f
Generator-evaluator architecture with iterative context-reset for long-running coding tasks. Ships as a Claude Code plugin — install with /plugin and use /agent-loop:init, /agent-loop:plan, /agent-loop:run.
96 lines
2.9 KiB
Bash
96 lines
2.9 KiB
Bash
#!/bin/bash
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# Prompt assembly — composes the final prompt from base + mode overlay.
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# Injects runtime variables (scope budgets, current story, iteration count).
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# Build the complete prompt for a given agent role and mode.
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# Usage: build_prompt "generator" "implement"
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# build_prompt "evaluator" "implement"
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build_prompt() {
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local role="$1" # generator | evaluator
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local mode="$2" # implement | explore | fix
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local base_file="$LOOP_DIR/prompts/${role}/_base.md"
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local mode_file="$LOOP_DIR/prompts/${role}/${mode}.md"
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local prompt=""
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# Start with base prompt
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if [ -f "$base_file" ]; then
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prompt=$(cat "$base_file")
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else
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log "WARNING: Missing base prompt: $base_file"
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return 1
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fi
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# Append mode-specific overlay
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if [ -f "$mode_file" ]; then
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prompt="${prompt}
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---
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$(cat "$mode_file")"
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else
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log "WARNING: Missing mode prompt: $mode_file"
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fi
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# Inject runtime variables
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prompt=$(inject_variables "$prompt" "$mode")
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printf '%s\n' "$prompt"
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}
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# Replace template variables in prompt text
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inject_variables() {
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local text="$1"
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local mode="$2"
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# Scope budgets from config
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local max_read max_write max_modify
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max_read=$(get_config_value ".scopeBudgets.${mode}.maxFilesToRead" "50")
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max_write=$(get_config_value ".scopeBudgets.${mode}.maxLinesToWrite" "500")
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max_modify=$(get_config_value ".scopeBudgets.${mode}.maxFilesToModify" "10")
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text="${text//\{\{MAX_FILES_TO_READ\}\}/$max_read}"
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text="${text//\{\{MAX_LINES_TO_WRITE\}\}/$max_write}"
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text="${text//\{\{MAX_FILES_TO_MODIFY\}\}/$max_modify}"
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text="${text//\{\{MODE\}\}/$mode}"
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text="${text//\{\{ITERATION\}\}/$ITERATION}"
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text="${text//\{\{MAX_ITERATIONS\}\}/$MAX_ITERATIONS}"
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text="${text//\{\{LOOP_DIR\}\}/$LOOP_DIR}"
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text="${text//\{\{PROJECT_ROOT\}\}/$PROJECT_ROOT}"
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text="${text//\{\{CURRENT_STORY_ID\}\}/${CURRENT_STORY_ID:-unknown}}"
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text="${text//\{\{PRE_GENERATOR_SHA\}\}/${PRE_GENERATOR_SHA:-HEAD~1}}"
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printf '%s\n' "$text"
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}
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# Read a value from config.json with a default fallback
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get_config_value() {
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local path="$1"
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local default="$2"
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local config="$LOOP_DIR/config.json"
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[ -f "$config" ] || { echo "$default"; return; }
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if command -v jq &>/dev/null; then
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local val
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val=$(jq -r "$path // empty" "$config" 2>/dev/null)
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echo "${val:-$default}"
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else
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LOOP_CONFIG="$config" LOOP_PATH="$path" LOOP_DEFAULT="$default" python3 -c "
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import json, os
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d = json.load(open(os.environ['LOOP_CONFIG']))
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keys = os.environ['LOOP_PATH'].lstrip('.').split('.')
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for k in keys:
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d = d.get(k) if isinstance(d, dict) else None
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if d is None:
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break
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val = d if d is not None and d != {} else os.environ['LOOP_DEFAULT']
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# Normalize Python booleans to lowercase for shell compatibility
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if isinstance(val, bool):
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val = str(val).lower()
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print(val, end='')
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"
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fi
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}
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