Borrowing it
Nothing to install: this file belongs to rajbos/ai-engineering-fluency. 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/rajbos/ai-engineering-fluency/main/.claude/agents/new-editor-support.mdgit clone --depth 1 https://github.com/rajbos/ai-engineering-fluencyWrote 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/agents/rajbos/ai-engineering-fluency/new-editor-support)<a href="https://agentmods.dev/agents/rajbos/ai-engineering-fluency/new-editor-support"><img src="https://agentmods.dev/badge/agents/rajbos/ai-engineering-fluency/new-editor-support/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/agents/rajbos/ai-engineering-fluency/new-editor-support"><img src="https://agentmods.dev/badge/agents/rajbos/ai-engineering-fluency/new-editor-support.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 | $0.00045 | $0.04419 |
| Opus 5.5 | $0.00018 | $0.01768 |
| Sonnet 5.5 | $0.00009 | $0.00884 |
| Haiku 4.5 | $0.00005 | $0.00442 |
Grade A, and why
new-editor-support 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.
New Editor Support
Integrate a new coding environment — a terminal-based CLI agent (OpenCode, Crush) or a GUI/IDE plugin (JetBrains, Eclipse) — into the extension so its session data appears in the session list, log viewer, charts, usage analysis, and diagnostics panels.
Primary integration mechanism: the shared ecosystem adapter registry (src/adapters/adapterRegistry.ts). Implementing and registering one adapter class wires the editor into both the VS Code extension and the CLI simultaneously — they consume the exact same registry. Manually editing extension.ts / usageAnalysis.ts / sessionDiscovery.ts with per-editor branches is no longer how this works (that model is deprecated — see Architecture Overview) and is a sign you've skipped Step 5 below.
When to Use This Agent
Trigger this agent when:
- A new terminal-based coding agent (like OpenCode, Crush, Continue, etc.) needs to be added as a tracked editor
- A new GUI/IDE plugin (like JetBrains, Eclipse) needs to be added as a tracked editor
- Users want token/interaction stats from a tool that stores data outside VS Code's AppData
- A new session data format (SQLite DB, JSON files, JSONL, etc.) needs to be parsed
- The editor's workspace/install location is user-configurable rather than fixed (e.g. Eclipse workspaces, per-project directories) — discovery must enumerate a registry/recent-list file instead of assuming one path
Architecture Overview
The extension uses a pipeline from raw session files to all displays:
Session Discovery → Cache → Token/Interaction Counting → Stats Aggregation → UI
Every new editor must plug into each stage of this pipeline. The integration used to require manually wiring ~8-10 locations across extension.ts, sessionDiscovery.ts, and usageAnalysis.ts (if you find old documentation or code describing that, it is stale). Today, all of those stages are driven generically by a registry of ecosystem adapters (src/ecosystemAdapter.ts, src/adapters/):
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.
- yesterday First seen · 190 lines · 45 tokens per session scan A 3d0f429757d5
new-editor-support is an agent published in the GitHub repository rajbos/ai-engineering-fluency (119 stars, last pushed yesterday), licensed MIT. It adds 45 tokens to every session and 4,419 once invoked, about $0.0002 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 2026-10-26.
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