Removed redundant and vague content from prompts/system/native.md:
- Simplified intro from 17 lines to 3 lines
- Reduced Code Search section to one line
- Removed duplicate Plan Mode example (kept one)
- Removed Action Envelope section (rarely used correctly)
- Removed verbose Memory Format details (tool description covers it)
- Removed Response Guidelines (obvious to modern LLMs)
Size: 8,620 chars -> 4,498 chars
Also updated:
- G3_IDENTITY_LINE constant for agent mode compatibility
- Test assertions to check for new prompt markers
- System prompt validation to use new marker string
Solves the tautology problem where the LLM would write invariants after
implementation, making them match what was done rather than constrain it.
Changes:
- plan_write now accepts 'rulespec' parameter
- New plans REQUIRE rulespec (fails with helpful error if missing)
- Plan updates don't require rulespec (backward compatible)
- Rulespec is parsed, validated, and written atomically with plan
- Updated system prompt with clear examples for new vs update
- Updated tool definition schema
- Updated all affected tests
New flow: task → plan+rulespec → user reviews BOTH → approve → implement
When a Rust-only workspace was detected, the Language-Specific Guidance
header was appearing with no content because Rust has an empty prompt
string (agent-specific prompts handle Rust instead).
The fix filters out empty prompt strings in get_language_prompts_for_workspace()
so the header only appears when there's actual guidance content.
Added test to verify Rust-only workspaces return None.
- Web Research instructions now come from skills/research/SKILL.md
- Skills are dynamically loaded and injected via generate_skills_prompt()
- Remove test_both_prompts_have_web_research test (no longer applicable)
- Remove unused G3Status::research_complete() function
This completes the externalization of research as a skill.
Replaces the built-in research/research_status tools with a portable
skill-based approach:
- Add embedded skills infrastructure (skills compiled into binary)
- Add repo-local skills/ directory support (highest priority)
- Create research skill with SKILL.md and g3-research shell script
- Script extraction to .g3/bin/ with version tracking
- Filesystem-based handoff via .g3/research/<id>/status.json
- Remove PendingResearchManager and all research tool code
- Update system prompt to reference skill instead of tool
Benefits:
- No special tool infrastructure needed (just shell + read_file)
- Context-efficient (reports stay on disk until needed)
- Crash-resilient (state persisted to filesystem)
- Portable (skill can be overridden per-workspace)
Breaking change: research tool calls now return a deprecation message
pointing to the research skill.
- Move system prompt for native tool calling models to prompts/system/native.md
- Use include_str! to embed at compile time
- Remove concatenated SHARED_* string constants
- Prompt is now readable/editable as a complete markdown document
- Non-native prompt still uses Rust constants (acceptable for now)
Performance:
- Beware list-ref in a loop (O(n²) trap)
- Consolidated performance section with data structure selection rationale
- for/fold for single-pass result building
Parameters and dynamic scope:
- Good uses: ports, logging, config, test fixtures
- Bad uses: hidden global state, implicit argument passing
- Document when functions read from parameters
Also simplified Continuations section (parameterize now has its own section).
Major improvements:
- Iteration idioms: for/fold example, for*/list, in-naturals for indices
- Data structure mutability: when to use mutable hash/vector/box
- let/let*/define style: use let* when order matters
- Contracts section: when to use define/contract, ->i, boundary focus
- Naming: -ref/-set/-update suffixes for custom types
- Size heuristics: semantic ('one abstraction per module') not numeric
- Module hygiene: explicit provides only, contract-out when correctness matters
Removed:
- Packages/tooling section (covered in base racket.md injection)
Now 119 lines of actionable, non-obvious Racket guidance.
From docs.racket-lang.org/style, added only the non-obvious tips:
- Prefer define over let/let* (reduces indentation)
- Put provide before require (interface at top)
- Use racket/base for libraries (faster loading)
- Naming: prefix functions with data type (board-free-spaces)
- Use in-list/in-vector explicitly in for loops (performance)
- Use module+ test submodules with raco test
- Size limits: ~500 lines/module, ~66 lines/function
Skipped basic conventions LLMs already know (predicate suffixes, etc).
Rust-specific readability guidance for the carmack agent including:
- let...else example for shallow control flow
- Async: don't block the runtime (tokio::fs, spawn_blocking, Send)
- Visibility: prefer pub(crate), private fields with accessors
- Generics: impl Trait over explicit params, avoid complex where clauses
- Improved iterator guidance: if you need a comment, use a loop
- UTF-8 string slicing warnings
- Ownership/lifetime pragmatism
- Anti-patterns: no macros/typestate/proc-macros unless already in repo
Also adds Rust detection to LANGUAGE_PROMPTS (empty base prompt,
agent-specific prompts handle the guidance).
Racket-specific guidance for the carmack agent including:
- Idiomatic Racket patterns (match, for/*, cond)
- Module organization with explicit provide lists
- Contracts and type boundaries
- Data modeling with structs
- Error handling best practices
- IO, paths, and portability
- Performance considerations
- Macro guidelines
- Testing with rackunit
- Add language_prompts module that auto-detects programming languages in workspace
- Scan for language files with depth limit (2) to inject relevant toolchain prompts
- Add prompts/langs/ directory for language-specific markdown files
- Include Racket/raco toolchain guidance as first language prompt
- Update combine_project_content() to accept language_content parameter
- Integrate language detection into main CLI flow and agent mode
- Update project memory with new feature documentation
