Codebase Intel Agent Skill

Codebase Intelligence Specialist

This skill provides a comprehensive understanding of the project's structure, intent, and risk. Use it for everything from high-level architecture questions to detailed impact analysis before editing code.

When to use

1. Codebase Discovery & Q&A

• "What does tokenService do?" (Summaries)
• "Where is the payment logic located?" (Role/Path mapping)
• "Show me an overview of the architecture." (Stats & Entry points)
• "Who last touched this file?" (Git history)
• "Find circular dependencies or dead code." (Structural audit)

2. Risk Assessment (Before Editing)

• "Is it safe to change this function signature?"
• "What is the blast radius of this file?"
• "What will break if I delete this constant?"

3. Graph Maintenance

• If a query returns "not mapped" or coverage is low.
• If you notice missing dependencies in the graph.

How to use — by task type

🔍 Discovery & Q&A

• File Summary: Bash(wednesday-skills query getFileSummary <file_path>)
• Returns: Role, Summary, Risk Score, and Blast Radius.
• Architecture Stats: Bash(wednesday-skills query getCodebaseStats)
• Use getHighConfidenceEntryPoints to identify the best starting files.
• Advanced Lookups:
• Bash(wednesday-skills query getHighRiskFiles 70) — find critical technical debt.
• Bash(wednesday-skills query getCircularDependencies) — find architectural smells.
• Bash(wednesday-skills query getAllDeadCode) — find unreachable modules.
• Context: Read .wednesday/codebase/MASTER.md for danger zones and primary data flows.
• History: Bash(git log --follow --oneline -20 -- <file>) for authorship.

⚠️ Pre-Edit Safety Check (Mandatory)

Before modifying any file, you MUST perform these checks:

• Check Risk: Bash(wednesday-skills query getFileSummary <file_path>)
• Score 0–30: Proceed directly.
• Score 31–60: Inform dev of the risk, proceed with care.
• Score 61–80: List direct dependents and transitive count; ask confirmation.
• Score 81–100: STOP. Require explicit dev approval before touching.
• Blast Radius: Bash(wednesday-skills blast <file_path>::<symbol_optional>)
• Review direct/transitive callers. Use this for cross-language impact (Go/Py/JS).

🛠 Graph Maintenance & Gaps

If you hit "not mapped" or detect a missing link:

• Gap Check: Bash(sqlite3 .wednesday/graph.db "SELECT file_path, meta FROM nodes WHERE file_path LIKE '%<file>%'")
• Check meta for gaps.eventEmitter, gaps.dynamic, etc.
• Fill Gaps: Bash(wednesday-skills fill-gaps --file <file> --min-risk 50)
• *Rule*: Only edges with confidence > 0.70 are added automatically.
• Annotations: If gaps persist, ask dev to add // @wednesday-skills:connects-to <symbol> → <file>.
• Refresh: Bash(wednesday-skills analyze --incremental) after adding annotations.

🚫 Never

• Guess: If data is missing, report "Not mapped" and suggest wednesday-skills map --full.
• Skip Checks: Never edit a file with risk > 80 without explicit dev confirmation.
• Token Bloat: Do NOT read raw source files to answer structural questions.
• Add Unreliable Edges: Never manually add edges with confidence below 0.70.

📄 Source Citation

Always end with the source:

• graph.db — Structural/Summary data
• MASTER.md — Architectural context
• git log — History/Authorship