Borrowing it
Nothing to install: this file belongs to zhmxiaowo/opencode-simple. 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/zhmxiaowo/opencode-simple/main/.opencode/commands/update-codemaps.mdgit clone --depth 1 https://github.com/zhmxiaowo/opencode-simpleWrote 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/zhmxiaowo/opencode-simple/update-codemaps)<a href="https://agentmods.dev/commands/zhmxiaowo/opencode-simple/update-codemaps"><img src="https://agentmods.dev/badge/commands/zhmxiaowo/opencode-simple/update-codemaps/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/zhmxiaowo/opencode-simple/update-codemaps"><img src="https://agentmods.dev/badge/commands/zhmxiaowo/opencode-simple/update-codemaps.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 | $0.00017 | $0.00593 |
| Opus 5.5 | $0.00007 | $0.00237 |
| Sonnet 5.5 | $0.00003 | $0.00119 |
| Haiku 4.5 | $0.00002 | $0.00059 |
Grade A, and why
update-codemaps 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.
This is a copy
89% identical to update-codemaps — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Update Codemaps
Analyze the codebase structure and generate token-lean architecture documentation.
Step 1: Scan Project Structure
- Identify the project type (monorepo, single app, library, microservice)
- Find all source directories (src/, lib/, app/, packages/)
- Map entry points (main.ts, index.ts, app.py, main.go, etc.)
Step 2: Generate Codemaps
Create or update codemaps in docs/CODEMAPS/ (or .reports/codemaps/):
| File | Contents |
|---|---|
architecture.md |
High-level system diagram, service boundaries, data flow |
backend.md |
API routes, middleware chain, service → repository mapping |
frontend.md |
Page tree, component hierarchy, state management flow |
data.md |
Database tables, relationships, migration history |
dependencies.md |
External services, third-party integrations, shared libraries |
Codemap Format
Each codemap should be token-lean — optimized for AI context consumption:
# Backend Architecture
## Routes
POST /api/users → UserController.create → UserService.create → UserRepo.insert
GET /api/users/:id → UserController.get → UserService.findById → UserRepo.findById
## Key Files
src/services/user.ts (business logic, 120 lines)
src/repos/user.ts (database access, 80 lines)
## Dependencies
- PostgreSQL (primary data store)
- Redis (session cache, rate limiting)
- Stripe (payment processing)
Step 3: Diff Detection
- If previous codemaps exist, calculate the diff percentage
- If changes > 30%, show the diff and request user approval before overwriting
- If changes <= 30%, update in place
Step 4: Add Metadata
Add a freshness header to each codemap:
<!-- Generated: 2026-02-11 | Files scanned: 142 | Token estimate: ~800 -->
Step 5: Save Analysis Report
Write a summary to .reports/codemap-diff.txt:
- Files added/removed/modified since last scan
- New dependencies detected
- Architecture changes (new routes, new services, etc.)
- Staleness warnings for docs not updated in 90+ days
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 · 78 lines · 17 tokens per session scan A 01c74a96ef71
update-codemaps is a command published in the GitHub repository zhmxiaowo/opencode-simple (2 stars, last pushed 7mo ago), licensed MIT. It adds 17 tokens to every session and 593 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 89% identical to update-codemaps, differing in 3 lines, and is treated as a copy.
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