Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/arenukvern/mcp_flutter/agents-mdgit clone --depth 1 https://github.com/Arenukvern/mcp_flutterWrote 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/instructions/arenukvern/mcp_flutter/agents-md)<a href="https://agentmods.dev/instructions/arenukvern/mcp_flutter/agents-md"><img src="https://agentmods.dev/badge/instructions/arenukvern/mcp_flutter/agents-md.svg" alt="Measured on agentmods" 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 | $0.01260 | $0.01260 |
| Opus 5 | $0.00630 | $0.00630 |
| Sonnet 5 | $0.00252 | $0.00252 |
| Haiku 4.5 | $0.00126 | $0.00126 |
Grade C, and why
mcp_flutter AGENTS.md scanned grade C with 2 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 4d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
2. If `steward` is missing or stale, install the released CLI with `curl -fsSL https://raw.githubusercontent.com/Arenukvern/skill_steward/main/install.sh | bash`. For local Skill Steward development, run from the Skill S Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
2. If `steward` is missing or stale, install the released CLI with `curl -fsSL https://raw.githubusercontent.com/Arenukvern/skill_steward/main/install.sh | bash`. For local Skill Steward development, run from the Skill S How it starts
The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GitNexus — Code Intelligence
This project is indexed by GitNexus as mcp_flutter (4960 symbols, 10728 relationships, 300 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
If any GitNexus tool warns the index is stale, run
npx gitnexus analyzein terminal first.
Always Do
- MUST run impact analysis before editing any symbol. Before modifying a function, class, or method, run
gitnexus_impact({target: "symbolName", direction: "upstream"})and report the blast radius (direct callers, affected processes, risk level) to the user. - MUST run
gitnexus_detect_changes()before committing to verify your changes only affect expected symbols and execution flows. - MUST warn the user if impact analysis returns HIGH or CRITICAL risk before proceeding with edits.
- When exploring unfamiliar code, use
gitnexus_query({query: "concept"})to find execution flows instead of grepping. It returns process-grouped results ranked by relevance. - When you need full context on a specific symbol — callers, callees, which execution flows it participates in — use
gitnexus_context({name: "symbolName"}).
Never Do
- NEVER edit a function, class, or method without first running
gitnexus_impacton it. - NEVER ignore HIGH or CRITICAL risk warnings from impact analysis.
- NEVER rename symbols with find-and-replace — use
gitnexus_renamewhich understands the call graph. - NEVER commit changes without running
gitnexus_detect_changes()to check affected scope.
Resources
| Resource | Use for |
|---|---|
gitnexus://repo/mcp_flutter/context |
Codebase overview, check index freshness |
gitnexus://repo/mcp_flutter/clusters |
All functional areas |
gitnexus://repo/mcp_flutter/processes |
All execution flows |
gitnexus://repo/mcp_flutter/process/{name} |
Step-by-step execution trace |
CLI
| Task | Read this skill file |
|---|---|
| Understand architecture / "How does X work?" | .claude/skills/gitnexus/gitnexus-exploring/SKILL.md |
| Blast radius / "What breaks if I change X?" | .claude/skills/gitnexus/gitnexus-impact-analysis/SKILL.md |
| Trace bugs / "Why is X failing?" | .claude/skills/gitnexus/gitnexus-debugging/SKILL.md |
| Rename / extract / split / refactor | .claude/skills/gitnexus/gitnexus-refactoring/SKILL.md |
| Tools, resources, schema reference | .claude/skills/gitnexus/gitnexus-guide/SKILL.md |
| Index, status, clean, wiki CLI commands | .claude/skills/gitnexus/gitnexus-cli/SKILL.md |
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.
- 4d ago First seen · 71 lines · 1,260 tokens per session scan C 065e83a99193
mcp_flutter AGENTS.md is an instructions file published in the GitHub repository Arenukvern/mcp_flutter (373 stars, last pushed 9d ago), licensed MIT. It adds 1,260 tokens to every session, about $0.0063 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
edge AGENTS.md
AGENTS.md instructions for OpenStrap/edge, covering agents.md — openstrap edge, 1. what this is, 3. hard invariants — violating these is a p0 regression, 4. recurring bug patterns — what actually ships broken here and 4.3 sticky boolean latches never reset on the failure path.
mobile CLAUDE.md
Claude Code instructions for lichess-org/mobile, covering claude.md, project overview, development setup, initial setup and install dependencies.
dart_agent_core AGENTS.md
Instructions for memex-lab/dart_agent_core, covering agents.md, common commands, transcript viewer cli (reads eval traces), two public libraries and architecture (big picture).
wind dynamic.instructions.md
Instructions for fluttersdk/wind, covering dynamic json renderer (lib/src/dynamic/), json schema, security model (whitelist first), state binding (id-keyed widgets) and action dispatch.
wind example-pages.instructions.md
Instructions for fluttersdk/wind, covering example page conventions (example/lib/pages/), naming, shape, rules and dark mode pairs.
wind tests.instructions.md
Instructions for fluttersdk/wind, covering test conventions (test/), layout mirror, required setup, no mockito and lifecycle discipline.