Files
ECC/.kiro/steering/performance.md
T
fd1b11cfc7 docs: refresh model-selection guidance to the Claude 5 families (#2723)
Model-routing guidance across the rules, skills, and harness-steering docs
still recommends Sonnet 4.6 / Opus 4.5-4.6 by name. Readers on the current
generation have to map those onto Sonnet 5 / Opus 5 themselves, and the
recommendation reads as pinned to a superseded generation.

Renames the recommended models in guidance tables and updates two pinned
model IDs in code samples:

- rules/steering guidance: .cursor, .kiro, and the seven translated
  performance.md copies (ja-JP, zh-CN, zh-TW, ko-KR, pt-BR, es, tr)
- skills/prompt-optimizer complexity-routing table (+ zh-CN copy)
- skills/cost-aware-llm-pipeline MODEL_SONNET constant (+ zh-CN, ja-JP)
- docs/examples project-guidelines template, which pinned the invalid ID
  claude-sonnet-4-5-20250514 (+ zh-TW, ja-JP copies)

Deliberately left alone:

- The "Pricing Reference (2025-2026)" table in cost-aware-llm-pipeline.
  Renaming those rows while keeping the existing per-token figures would
  assert Claude 5 pricing this change has not verified.
- Executable model config (.opencode/opencode.json, agent.yaml). Those pins
  change real agent behavior and belong in their own reviewed change.
- Historical and illustrative references: the-shortform-guide session
  transcripts, the ECC-PRO roadmap log entry, gan-style-harness's
  "Opus 4.5-class"/"Opus 4.6-class" capability tiers, and
  strategic-compact's deliberately generic "400k Opus 4.x" example.
- docs/ATLAS-CLOUD-GUIDE.md, which lists a third-party provider's catalog.

Documentation wording only; no behavioral change.

Co-authored-by: Phumchai Tanonsi <274848436+phumchai1515-prog@users.noreply.github.com>
2026-08-11 19:36:48 -04:00

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1.4 KiB
Markdown

---
inclusion: auto
name: performance
description: Performance optimization guidelines including model selection strategy, context window management, and build troubleshooting
---
# Performance Optimization
## Model Selection Strategy
**Claude Haiku 4.5** (90% of Sonnet capability, 3x cost savings):
- Lightweight agents with frequent invocation
- Pair programming and code generation
- Worker agents in multi-agent systems
**Claude Sonnet 5** (Best coding model):
- Main development work
- Orchestrating multi-agent workflows
- Complex coding tasks
**Claude Opus 5** (Deepest reasoning):
- Complex architectural decisions
- Maximum reasoning requirements
- Research and analysis tasks
## Context Window Management
Avoid last 20% of context window for:
- Large-scale refactoring
- Feature implementation spanning multiple files
- Debugging complex interactions
Lower context sensitivity tasks:
- Single-file edits
- Independent utility creation
- Documentation updates
- Simple bug fixes
## Extended Thinking
Extended thinking is enabled by default in Kiro, reserving tokens for internal reasoning.
For complex tasks requiring deep reasoning:
1. Ensure extended thinking is enabled
2. Use structured approach for planning
3. Use multiple critique rounds for thorough analysis
4. Use sub-agents for diverse perspectives
## Build Troubleshooting
If build fails:
1. Use build-error-resolver agent
2. Analyze error messages
3. Fix incrementally
4. Verify after each fix