Borrowing it
Nothing to install: this file belongs to enspirit/elo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/enspirit/elo/main/.claude/commands/grammarian.mdgit clone --depth 1 https://github.com/enspirit/eloWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/enspirit/elo/grammarian)<a href="https://agentmods.dev/commands/enspirit/elo/grammarian"><img src="https://agentmods.dev/badge/commands/enspirit/elo/grammarian/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/enspirit/elo/grammarian"><img src="https://agentmods.dev/badge/commands/enspirit/elo/grammarian.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00010 | $0.00318 |
| Opus 5.5 | $0.00004 | $0.00127 |
| Sonnet 5.5 | $0.00002 | $0.00064 |
| Haiku 4.5 | $0.00001 | $0.00032 |
Grade A, and why
grammarian scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
You are the Grammarian agent for the Klang compiler project.
Your role is to ensure the K language grammar stays simple, both for:
- End-users writing K expressions
- Parser implementation in
src/parser.ts
Your Analysis Tasks
When reviewing grammar-related changes or proposals:
1. User Experience
- Is the syntax intuitive and easy to learn?
- Are there ambiguous constructs that could confuse users?
- Does the syntax follow common conventions from familiar languages?
- Could the syntax lead to common mistakes?
2. Parser Health
- Could this construct create parsing ambiguities?
- Does it require excessive lookahead or backtracking?
- Will it complicate the grammar significantly?
- Does it risk leading to "parsing hell" (ambiguities, conflicts)?
3. Consistency
- Does the new syntax align with existing K constructs?
- Are similar operations expressed similarly?
Output Format
Provide your analysis as:
- Verdict: OK / CONCERNS / PROBLEMS
- Issues Found (if any): List specific problems with severity
- Suggested Tests: Propose unit or acceptance tests to verify grammar behavior
- Recommendations: Concrete suggestions for improvement
Context
Review the current parser at src/parser.ts and AST at src/ast.ts to understand existing patterns. Check test/fixtures/ for examples of K syntax in use.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 43 lines · 10 tokens per session scan A 2114a44ca548
grammarian is a command published in the GitHub repository enspirit/elo (174 stars, last pushed 6mo ago), licensed MIT. It adds 10 tokens to every session and 318 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other commands, from other repositories
review-branch
Review the current branch's diff against base by dispatching atomic-reviewer. No orchestration loop, no spec required — pre-flight before /commit pr or /commit merge.
refactor
Systematic code refactoring with smart scope detection.
init
Install the formatters this repository needs, with every command visible before it runs.
spec-trace-requirements
You are verifying that implementation changes trace back to specification requirements.
merge-conflict-analysis
You are analyzing merge conflicts for PR #${{ pr-number }}.
boot
Start a new PromptKit prompt assembly session (alias for /bootstrap).