Agent skill
sk-prompt-improver
Prompt engineering specialist that transforms vague requests into structured, scored AI prompts using 7 proven frameworks (RCAF, COSTAR, RACE, CIDI, TIDD-EC, CRISPE, CRAFT), DEPTH thinking methodology, and CLEAR scoring across text modes.
Install this agent skill to your Project
npx add-skill https://github.com/MichelKerkmeester/opencode--spec-kit-skilled-agent-orchestration/tree/main/.opencode/skill/sk-prompt-improver
SKILL.md
Prompt Engineering Specialist - Multi-Framework Enhancement with DEPTH Processing
Transforms vague or basic inputs into highly effective, structured AI prompts. Provides 7 text frameworks with automatic framework selection and CLEAR quality scoring.
Core Principle: Clarity, logic, expression, and reliability through structured methodology.
1. WHEN TO USE
Activation Triggers
Use when:
- Enhancing or improving an AI prompt for any purpose
- Evaluating prompt quality with CLEAR scoring
- Selecting the right prompt framework for a given task
- Transforming vague requests into structured, effective prompts
Keyword Triggers:
$improve,$text,$short,$refine,$json,$yaml$raw(skip DEPTH, fast pass-through)- "improve my prompt", "enhance this prompt", "prompt engineering"
- "create a prompt for", "optimize this prompt"
Use Cases
Text Prompt Enhancement
Transform vague requests into structured prompts using RCAF, COSTAR, RACE, CIDI, TIDD-EC, CRISPE, or CRAFT frameworks with CLEAR scoring (40+/50 threshold).
When NOT to Use
Skip this skill when:
- Writing code or debugging (use sk-code skills instead)
- Creating documentation (use sk-doc instead)
- Simple text editing without prompt structure needs
- Direct API calls that do not need prompt optimization
2. SMART ROUTING
Primary Detection Signal
The primary routing signal is the command prefix ($improve, $text, $refine, $short, $json, $yaml, $raw). When present, the prefix determines the operating mode directly. When absent, the router falls back to keyword-weighted intent scoring against the request text, selecting the top-scoring intent (or top-2 when scores are close). A zero-score fallback defaults to TEXT_ENHANCE with a disambiguation checklist.
Phase Detection
USER REQUEST
|
+- STEP 0: Detect mode ($command prefix or keyword signals)
+- STEP 1: Score intents (top-2 when ambiguity is small)
+- Phase 1: Framework Selection (7 frameworks evaluated)
+- Phase 2: DEPTH Processing (3-10 rounds based on mode)
+- Phase 3: Scoring & Validation (CLEAR)
+- Phase 4: Output Delivery (formatted prompt)
Resource Domains
The router discovers markdown resources recursively from references/ and assets/ and then applies intent scoring from INTENT_MODEL.
references/for DEPTH methodology, framework definitions, and CLEAR scoring.assets/for format-specific deep-dives (Markdown, JSON, YAML).
references/depth_framework.md - DEPTH methodology, RICCE integration
references/patterns_evaluation.md - 7 frameworks, CLEAR scoring
assets/format_guide_markdown.md - Markdown format deep-dive
assets/format_guide_json.md - JSON format deep-dive
assets/format_guide_yaml.md - YAML format deep-dive
Resource Loading Levels
| Level | When to Load | Resources |
|---|---|---|
| ALWAYS | Every skill invocation | SKILL.md (this file) |
| CONDITIONAL | If intent signals match | references/depth_framework.md, references/patterns_evaluation.md |
| ON_DEMAND | Only on explicit request | assets/format_guide_markdown.md, assets/format_guide_json.md, assets/format_guide_yaml.md |
Smart Router Pseudocode
from pathlib import Path
SKILL_ROOT = Path(__file__).resolve().parent
RESOURCE_BASES = (SKILL_ROOT / "references", SKILL_ROOT / "assets")
DEFAULT_RESOURCE = "references/depth_framework.md"
INTENT_MODEL = {
"TEXT_ENHANCE": {"keywords": [("improve", 4), ("enhance", 4), ("prompt", 3), ("text", 3), ("refine", 4)]},
"FRAMEWORK": {"keywords": [("framework", 4), ("rcaf", 5), ("costar", 5), ("tidd-ec", 5), ("scoring", 3)]},
}
RESOURCE_MAP = {
"TEXT_ENHANCE": ["references/depth_framework.md", "references/patterns_evaluation.md"],
"FRAMEWORK": ["references/patterns_evaluation.md"],
}
ON_DEMAND_KEYWORDS = ["deep dive", "full template", "all frameworks", "format guide"]
UNKNOWN_FALLBACK_CHECKLIST = [
"Is this a prompt enhancement request or a different task?",
"Does the user want a specific framework applied?",
"Is the user asking about scoring or evaluation?",
"Should this route to sk-doc or sk-code instead?",
]
AMBIGUITY_DELTA = 1
def _guard_in_skill(relative_path: str) -> str:
resolved = (SKILL_ROOT / relative_path).resolve()
resolved.relative_to(SKILL_ROOT)
if resolved.suffix.lower() != ".md":
raise ValueError(f"Only markdown resources are routable: {relative_path}")
return resolved.relative_to(SKILL_ROOT).as_posix()
def discover_markdown_resources() -> set[str]:
docs = []
for base in RESOURCE_BASES:
if base.exists():
docs.extend(path for path in base.rglob("*.md") if path.is_file())
return {doc.relative_to(SKILL_ROOT).as_posix() for doc in docs}
def _task_text(task) -> str:
if isinstance(task, str):
return task.lower()
return " ".join(
str(task.get(f, "")) for f in ("text", "query", "description", "keywords")
).lower()
def score_intents(task) -> dict[str, float]:
text = _task_text(task)
scores = {intent: 0 for intent in INTENT_MODEL}
for intent, cfg in INTENT_MODEL.items():
for keyword, weight in cfg["keywords"]:
if keyword in text:
scores[intent] += weight
return scores
def select_intents(scores, ambiguity_delta=AMBIGUITY_DELTA, max_intents=2):
ranked = sorted(scores.items(), key=lambda pair: pair[1], reverse=True)
primary, primary_score = ranked[0]
if primary_score == 0:
return ("TEXT_ENHANCE", None)
secondary, secondary_score = ranked[1]
if secondary_score > 0 and (primary_score - secondary_score) <= ambiguity_delta:
return (primary, secondary)
return (primary, None)
def route_prompt_improver_resources(task):
inventory = discover_markdown_resources()
text = _task_text(task)
scores = score_intents(task)
primary, secondary = select_intents(scores)
intents = [primary] + ([secondary] if secondary else [])
loaded = []
seen = set()
def load_if_available(relative_path: str):
guarded = _guard_in_skill(relative_path)
if guarded in inventory and guarded not in seen:
load(guarded)
loaded.append(guarded)
seen.add(guarded)
# Unknown fallback: when no keywords match at all
if scores[primary] == 0:
load_if_available(DEFAULT_RESOURCE)
return {
"intents": intents,
"intent_scores": scores,
"resources": loaded,
"needs_disambiguation": True,
"disambiguation_checklist": UNKNOWN_FALLBACK_CHECKLIST,
}
# Standard routing: default + intent-mapped resources
load_if_available(DEFAULT_RESOURCE)
for intent in intents:
for relative_path in RESOURCE_MAP.get(intent, []):
load_if_available(relative_path)
# ON_DEMAND: load all resource map paths when trigger keywords are present
if any(kw in text for kw in ON_DEMAND_KEYWORDS):
for paths in RESOURCE_MAP.values():
for relative_path in paths:
load_if_available(relative_path)
return {"intents": intents, "intent_scores": scores, "resources": loaded}
3. HOW IT WORKS
Enhancement Pipeline
Every prompt enhancement follows this pipeline:
STEP 1: Mode Detection
├─ Command prefix check ($text, $improve, $refine, $short, etc.)
├─ Keyword signal analysis (>=80% confidence = auto-route)
└─ Ambiguous? Ask ONE comprehensive question
↓
STEP 2: Framework Selection
├─ Evaluate 7 frameworks against request characteristics
├─ Score: complexity, urgency, audience, creativity, precision
└─ Select primary framework + alternative
↓
STEP 3: DEPTH Processing (5-10 rounds)
├─ Discover: 5 perspectives, assumption audit, RICCE Role & Context
├─ Engineer: Framework application, RICCE Constraints & Instructions
├─ Prototype: Template build, RICCE validation
├─ Test: Scoring (CLEAR), quality gates
└─ Harmonize: Final polish, RICCE completeness
↓
STEP 4: Scoring & Delivery
├─ Apply context-appropriate scoring system
├─ Verify threshold met (CLEAR 40+/50)
└─ Deliver enhanced prompt with transparency report
See the Smart Routing pseudocode (Section 2) for the complete routing logic.
Operating Modes
| Mode | Command | DEPTH Rounds | Scoring | Use Case |
|---|---|---|---|---|
| Interactive | (default) | 10 | CLEAR | Guided enhancement |
| Text | $text |
10 | CLEAR | Standard text prompt |
| Short | $short |
3 | CLEAR | Quick refinement |
| Improve | $improve |
10 | CLEAR | Standard enhancement |
| Refine | $refine |
10 | CLEAR | Maximum optimization |
| JSON | $json |
10 | CLEAR | API-ready format |
| YAML | $yaml |
10 | CLEAR | Config format |
| Raw | $raw |
0 | None | Skip DEPTH |
Framework Selection Matrix
| Complexity | Primary Need | Framework | Success Rate |
|---|---|---|---|
| 1-3 | Speed | RACE | 88% |
| 1-4 | Clarity | RCAF | 92% |
| 3-6 | Audience | COSTAR | 94% |
| 4-6 | Instructions | CIDI | 90% |
| 5-7 | Creativity | CRISPE | 87% |
| 6-8 | Precision | TIDD-EC | 93% |
| 7-10 | Comprehensive | CRAFT | 91% |
| See patterns_evaluation.md for complete framework details. | |||
| See depth_framework.md for the DEPTH methodology. |
Scoring Systems
CLEAR (50-point scale): Correctness (10) + Logic (10) + Expression (15) + Arrangement (10) + Reusability (5). Threshold: 40+.
4. RULES
✅ ALWAYS
-
ALWAYS ask ONE comprehensive question before processing
- Gather: What needs enhancement? Use case/goal? Requirements?
- Exception:
$rawmode skips questions entirely
-
ALWAYS apply DEPTH processing for the detected mode
- 10 rounds for text modes, 3 for $short, 0 for $raw
-
ALWAYS enforce minimum 3 perspectives during DEPTH Discover phase
- Target 5 perspectives; 3 is the blocking minimum
- Perspectives: Prompt Engineering, AI Interpretation, User Clarity, Framework Selection, Token Efficiency
-
ALWAYS validate with RICCE before delivery
- Role, Instructions, Context, Constraints, Examples must be present or justified
-
ALWAYS apply scoring and verify threshold met
- CLEAR 40+/50
-
ALWAYS provide a transparency report after delivering the enhanced prompt
- Framework selected, DEPTH rounds applied, score breakdown, assumptions flagged
❌ NEVER
-
NEVER answer own questions
- Wait for user response before proceeding with enhancement
-
NEVER skip framework evaluation
- Even for simple prompts, score at least 3 frameworks before selecting
-
NEVER deliver without scoring
- Every enhanced prompt must have a CLEAR score (except $raw)
-
NEVER use second-person voice in enhanced prompts
- Use imperative or third-person form in the output
-
NEVER exceed context with full reference loading
- Load only the references needed for the detected mode
⚠️ ESCALATE IF
-
ESCALATE IF mode detection confidence < 50%
- Ask: "What type of prompt are you creating? Can you describe the use case?"
-
ESCALATE IF CLEAR score below threshold after DEPTH
- Suggest: "Score is below target. Options: A) Additional refinement round B) Switch framework C) Accept as-is"
-
ESCALATE IF request conflicts with prompt engineering scope
- Redirect: "This appears to be a [code/doc/debug] task. Consider using [sk-code/sk-doc] instead."
5. REFERENCES
Core References
- depth_framework.md - DEPTH methodology (Discover, Engineer, Prototype, Test, Harmonize), RICCE integration
- patterns_evaluation.md - 7 framework definitions, CLEAR scoring
Asset Files
- format_guide_markdown.md - Markdown format deep-dive: fundamentals, delivery standards, RCAF/CRAFT structures, advanced patterns, validation, best practices
- format_guide_json.md - JSON format deep-dive: fundamentals, data types, delivery standards, RCAF/CRAFT structures, advanced patterns, validation, best practices
- format_guide_yaml.md - YAML format deep-dive: fundamentals, data types, delivery standards, RCAF/CRAFT structures, advanced patterns, templates, validation, best practices
Reference Loading Notes
- Load only references needed for current intent
- Smart Routing (Section 2) is the single authority for loading rules
- SKILL.md (this file) is always loaded; conditionally load mode-specific references
6. SUCCESS CRITERIA
Enhancement Complete When
- ✅ Mode detected and framework selected with reasoning
- ✅ DEPTH rounds completed per mode specification
- ✅ Scoring applied and threshold verified
- ✅ RICCE validation passed
- ✅ Enhanced prompt delivered with transparency report
- ✅ User can iterate or accept
Quality Targets
- CLEAR Score: 40+ out of 50
- Framework Selection Accuracy: Match task characteristics to framework with >85% alignment
7. INTEGRATION POINTS
Framework Integration
This skill operates within the behavioral framework defined in AGENTS.md.
Key integrations:
- Gate 2: Skill routing via
skill_advisor.pywith prompt-related intent boosters - Tool Routing: Per AGENTS.md Section 6 decision tree
- Memory: Context preserved via Spec Kit Memory MCP
Related Skills
| Skill | Integration |
|---|---|
| sk-doc | Documentation outputs from prompt engineering may use sk-doc for formatting |
| sk-code--web | Prompts for web development contexts may co-invoke with sk-code--web |
Tool Usage Guidelines
- Read: Load reference files from references/ directory
- Write: Output enhanced prompts to user-specified location
- Glob: Discover available reference files in skill directory
- Bash: Run validation scripts if needed
8. RELATED RESOURCES
Reference Files
- depth_framework.md - DEPTH thinking methodology
- patterns_evaluation.md - Framework library and scoring
Related Skills
sk-doc- Documentation quality and component creation
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