Token efficiency in Claude AI prompts/configurations for agentic coding tasks.
Raw Developer Origin & Technical Request
GitHub Issue
Mar 31, 2026
## Summary
I built a deterministic evaluation harness to test whether aggressive output-reduction rules actually save total tokens in agentic coding tasks. Your repo's actual CLAUDE.md was tested directly alongside 5 other configurations across 3 coding challenges.
**Each agent gets a test file and must make all tests pass.** All configs pass 100%. The comparison is purely tokens to green.
## The 6 Configs Tested
| Config | What's in `.claude/` | Size |
|--------|---------------------|------|
| A-baseline | "A coding project." | 1 line |
| B-token-efficient | Our 12-line summary of token-reduction ideas | 12 lines |
| C-structured | CLAUDE.md + rules + agents + reference | 4 files |
| D-workflow | CLAUDE.md + rules + skills + hooks | 4 files |
| E-hybrid | CLAUDE.md + rules + agents | 3 files |
| **F-drona23** | **Your actual CLAUDE.md from this repo** | **61 lines** |
## Results — All Pass, Token Cost Varies
### CSV Reporter
| Config | Avg Tokens | Avg Cost |
|--------|------------|----------|
| E-hybrid | 1,012 | $0.068 |
| C-structured | 1,016 | $0.067 |
| A-baseline | 1,088 | $0.078 |
| B-token-efficient | 1,096 | $0.093 |
| **F-drona23** | **1,137** | **$0.084** |
| D-workflow | 1,199 | $0.083 |
### SQLite Window Functions
| Config | Avg Tokens | Avg Cost |
|--------|------------|----------|
| E-hybrid | 1,230 | $0.108 |
| A-baseline | 1,255 | $0.120 |
| C-structured | 1,287 | $0.116 |
| B-token-efficient | 1,339 | $0.116 |
| D-workflow | 1,374 | $0.123 |
| **F-...
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