colorscheme-review

name	colorscheme-review
description	Read-only audit of the token colorscheme for palette integrity, module conformance, and toolchain health
user-invocable	true

Perform a read-only structured audit of this Neovim colorscheme. Do NOT modify any files. Do NOT create any files (no report saved to disk). Read everything, analyze, and produce a single markdown report printed to the conversation.

Setup

Before starting, read these files to understand the project:

1. CLAUDE.md (project conventions)
2. colors/token.lua, plugin/token.lua, lua/token/init.lua, lua/token/compile.lua (entry points and load flow)
3. lua/token/palette.lua (dark and light color tables)
4. lua/token/groups/init.lua, lua/token/groups/plugins/init.lua (group merge order and plugin list)
5. lua/token/terminal.lua, lua/lualine/themes/token.lua
6. Makefile, .stylua.toml, selene.toml, neovim.yaml, taplo.toml
7. scripts/*.lua (contrib and library generators)

Tool Usage

Use the available tools to verify findings before reporting. A finding based only on grep without verification is not production-grade.

context7 MCP (library documentation)

Use resolve-library-id then query-docs to fetch current plugin documentation. Required when:

• Verifying current highlight group names for a plugin in lua/token/groups/plugins/*.lua (Phase 5)
• Confirming a group has been renamed, added, or removed upstream before flagging it

Skip plugins whose documentation is not discoverable rather than guessing.

LSP tool (Lua code intelligence)

Use LSP operations (hover, go-to-definition, find-references, document-symbols) to:

• Confirm a grep match is an actual code reference, not a comment or string (Phase 2, 3)
• Verify p.<key> references resolve to real fields on the palette table (Phase 3)
• Check that group modules return a function with the expected signature (Phase 3)

Bash (read-only targets only)

The following are pre-approved and safe to run:

• stylua --check --config-path .stylua.toml .
• selene --config selene.toml lua/ colors/ plugin/
• make contrib-verify

Do NOT run any command that mutates the working tree. make format, make contrib, and make all all rewrite files and are forbidden in this audit.

Audit Phases

Execute all 8 phases in order. For each finding, record a severity, an ID tag, the file:line reference, and a suggested fix.

Phase 1: Toolchain & Static Analysis

1. Run stylua --check --config-path .stylua.toml . and capture the output.
   • Format drift → Warning (list the files).
   • Missing stylua binary → Critical.
2. Run selene --config selene.toml lua/ colors/ plugin/ and capture the output.
   • Lint errors → Critical.
   • Missing selene binary → Critical.
3. Run make contrib-verify. Any out-of-date contrib file → Warning, naming the specific file and which palette change likely caused the drift. Missing luajit → Critical.
4. Grep Lua sources under lua/, colors/, plugin/ for deprecated Neovim APIs. Use LSP to confirm each match is a real call (not a comment or string) before reporting:
   • vim.cmd('hi / vim.cmd("hi / vim.cmd('highlight / vim.cmd("highlight (use vim.api.nvim_set_hl)
   • vim.tbl_flatten (use vim.iter(t):flatten():totable())
   • vim.tbl_islist (use vim.islist)
   • vim.loop (use vim.uv)
   • vim.api.nvim_set_option / nvim_buf_set_option / nvim_win_set_option (use vim.o / vim.bo / vim.wo)

Phase 2: Palette Integrity

1. Parse lua/token/palette.lua. Extract the key sets of both the dark and light tables.
   • Asymmetric key sets → Critical (list missing/extra keys on each side).
2. Verify every value in both tables matches ^#[0-9a-fA-F]{6}$.
   • Malformed hex → Critical.
3. Grep for the pattern #[0-9a-fA-F]{6} under lua/, colors/, plugin/. Any hit outside lua/token/palette.lua and lua/token/terminal.lua → Warning (colors should flow through the palette).
   • Guard: scripts/ and contrib/ are allowed to embed hex — they generate external theme files. Do not scan those directories.
4. Unused palette keys: for each key in the dark palette, grep p\.<key>\b across lua/token/groups/**/*.lua, lua/token/terminal.lua, and lua/lualine/themes/token.lua.
   • Zero references anywhere → Info.
   • Guard: verify with LSP that the grep has searched every file that consumes the palette. Do not flag keys that appear only in indexed form (e.g., palette[name]) — check for dynamic access before flagging.

Phase 3: Group Module Conformance

1. For every .lua file in lua/token/groups/ and lua/token/groups/plugins/ (excluding the two init.lua files): verify it returns a function with signature (palette) -> table<string, vim.api.keyset.highlight>.
   • Non-conforming (returns a table directly, returns nothing, wrong arity) → Critical.
2. For every p.<key> reference in a group module, verify the key exists in the palette. Use LSP go-to-definition or field-completion to confirm.
   • Unresolved reference → Critical.
3. Link preference: within a single group module, if two or more groups share the exact same options table (same keys, same values), suggest linking later ones to the first → Info.
   • Guard: do not flag across modules (cross-module links introduce load-order dependencies). Only flag duplicates in the same file.

Phase 4: Plugin List Coherence

1. List filenames under lua/token/groups/plugins/ (excluding init.lua). Compare against the hardcoded module list in lua/token/groups/plugins/init.lua.
   • File on disk not in list → Critical (module is never loaded; its groups are dead code).
   • Entry in list without a corresponding file → Critical (require will fail at startup).
2. Verify the list in init.lua is alphabetically sorted.
   • Out of order → Info.

Phase 5: Plugin API Verification (context7)

For each plugin group module in lua/token/groups/plugins/, resolve the upstream library via resolve-library-id and pull current highlight-group documentation via query-docs. Compare against the groups the module defines.

• Module sets a group that no longer appears in upstream docs (may be stale) → Info.
• Upstream documents a highlight group that the module does not define or link → Info.
• Upstream documents a renamed group (e.g., old name removed, new name added) → Warning.

Batch one resolve + one query per plugin. Skip plugins whose docs are not discoverable — silence beats a guess.

Phase 6: Load Path & Compile Cache

1. colors/token.lua: must be a thin entry that calls require('token').load(). Anything else → Warning.
2. plugin/token.lua: must register the :TokenCompile user command and wire it to require('token.compile').compile(). Missing → Warning.
3. lua/token/init.lua dynamic-fallback path must: (a) call vim.cmd('hi clear') (or equivalent), (b) bust token.* (except token.compile) and lualine.themes.token from package.loaded, (c) load the palette for the current vim.o.background, (d) merge groups via require('token.groups')(p), (e) apply via vim.api.nvim_set_hl, (f) set terminal colors via require('token.terminal').set(p, is_dark).
   • Any missing step → Critical (colorscheme won't reload cleanly after :TokenCompile).
4. lua/token/compile.lua: load(bg) must recover from a missing or corrupt bytecode cache (delete the stale file, fall back to dynamic load). Missing recovery → Warning.

Phase 7: Terminal & Lualine Coverage

1. lua/token/terminal.lua: verify the colors(p, is_dark) function returns a table with all 16 indices (0–15) populated for both is_dark = true and is_dark = false. Any nil slot → Critical.
2. lua/lualine/themes/token.lua: verify all 7 lualine modes are present: normal, insert, visual, replace, command, terminal, inactive. Each must have a, b, c sections.
   • Missing mode → Warning.
   • Missing section within a mode → Warning.
3. Verify the lualine theme loads colors via require('token.palette')(vim.o.background) (not a hardcoded palette copy). Hardcoded hex in the lualine theme → Warning.

Phase 8: Standard Neovim Group Coverage

Cross-reference defined highlight groups against a curated list of commonly user-visible standard Neovim groups (from :h highlight-groups and :h group-name). For each standard group that is neither defined nor linked in any module, report as Info.

Curated list of groups to check (this is a small, stable set — do not expand it speculatively):

ColorColumn, Conceal, CurSearch, Cursor, CursorColumn, CursorLine, CursorLineNr, Directory, DiffAdd, DiffChange, DiffDelete, DiffText, EndOfBuffer, ErrorMsg, FloatBorder, FloatTitle, FoldColumn, Folded, IncSearch, LineNr, MatchParen, ModeMsg, MoreMsg, NonText, Normal, NormalFloat, NormalNC, Pmenu, PmenuSbar, PmenuSel, PmenuThumb, Question, QuickFixLine, Search, SignColumn, SpecialKey, SpellBad, SpellCap, SpellLocal, SpellRare, StatusLine, StatusLineNC, Substitute, TabLine, TabLineFill, TabLineSel, Title, Visual, VisualNOS, WarningMsg, Whitespace, WinSeparator.

Guard: only flag a group if it is absent and not targeted via link = '<Group>' elsewhere. Apply the zero-false-positive rule harder here than anywhere else — bias toward silence.

Output Format

Produce a single markdown report with this structure, printed to the conversation (do not write to disk):

# Token Colorscheme Audit Report

## Summary

| Severity | Count |
|----------|-------|
| Critical | X     |
| Warning  | X     |
| Info     | X     |

## Critical

### [C-01] Title
- **File**: `path/to/file.lua:42`
- **Issue**: Description of the problem
- **Fix**: Suggested resolution

## Warnings

### [W-01] Title
- **File**: `path/to/file.lua:10`
- **Issue**: Description
- **Fix**: Suggested resolution

## Info

### [I-01] Title
- **File**: `path/to/file.lua:5`
- **Issue**: Description
- **Suggestion**: Optional improvement

Severity Definitions

• Critical: broken functionality right now. make all or make contrib-verify failures. Palette asymmetry. Unresolved p.<key> references. Plugin file/list mismatch. Missing load-path step. Gaps in terminal colors 0–15.
• Warning: convention violations from CLAUDE.md. Deprecated APIs (still functional but should be updated). Hardcoded hex outside the allowed files. Missing lualine mode or section. Contrib drift. Renamed upstream highlight groups.
• Info: consistency improvements, unused palette keys, missing standard Neovim groups, minor stylistic opportunities. Not wrong, just could be better.

Rules

1. Do NOT modify any files. This is a read-only audit.
2. Do NOT create any files (no reports saved to disk). Print the report to the conversation only.
3. Use context7 MCP (resolve-library-id then query-docs) to verify plugin highlight groups before flagging drift.
4. Use the LSP tool to verify grep matches are real code, not comments or strings.
5. Be specific: always include file:line references.
6. Do not flag intentional design choices:
   • scripts/ and contrib/ may contain hex literals (they generate external theme files).
   • Some palette keys exist primarily for terminal colors or lualine and may look unused from a narrow grep.
   • ibl.lua and hlchunk.lua coexist by design (different indentation plugins supported in parallel).
   • Both neo_tree.lua and nvimtree.lua coexist by design (two file tree plugins supported in parallel).
7. Group related findings under the same ID if they share a root cause (e.g., ten unused keys from one naming family = one finding).
8. Zero false positives is more important than coverage. If a check might flag correct code, skip the finding rather than report it. The user can request deeper investigation.
9. Do not report the absence of optional features. Missing support for a plugin not in the current list is not a finding. Missing a niche highlight group outside the Phase 8 curated list is not a finding.