tmcp-migration-readiness

tmcp-migration-readiness is a skill for Claude Code from jakyeamos/tmcp. It costs 34 tokens per session (287 once invoked), scanned A, original, MIT.

A workflow for checking whether a software migration or large upgrade is ready, including compatibility, rollout order, rollback, and verification.

In plain words
What is it for?
Use it for migration plans, upgrades, deprecation cleanup, compatibility reviews, large refactors, and cutover readiness.
Why use it?
It exposes missing preparation before changing systems, such as unclear affected parts, data work, or recovery steps.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node scripts/tmcp_launcher.mjs review-plan "Review migration readiness for <project>" --project-path "<project-path>" --evidence-json '<json>' --write-artifacts.

Part of the tmcp plugin — 20 skills, 1 MCP server shipped together

Good fit Use it for migration plans, upgrades, deprecation cleanup, compatibility reviews, large refactors, and cutover readiness.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/jakyeamos/tmcp
agentmods
npx agentmods add skills/jakyeamos/tmcp/tmcp-migration-readiness

Made for: Claude Code.

Or install tmcp, the plugin that ships this one along with the rest of its 20 skills, 1 MCP server.

Wrote 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.

agentmods badge for tmcp-migration-readiness

README.md
[![agentmods](https://agentmods.dev/badge/skills/jakyeamos/tmcp/tmcp-migration-readiness/github.svg)](https://agentmods.dev/skills/jakyeamos/tmcp/tmcp-migration-readiness)
Your own site
<a href="https://agentmods.dev/skills/jakyeamos/tmcp/tmcp-migration-readiness"><img src="https://agentmods.dev/badge/skills/jakyeamos/tmcp/tmcp-migration-readiness/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.

agentmods 80×15 button for tmcp-migration-readiness

Your own site · 80×15
<a href="https://agentmods.dev/skills/jakyeamos/tmcp/tmcp-migration-readiness"><img src="https://agentmods.dev/badge/skills/jakyeamos/tmcp/tmcp-migration-readiness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 287 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00034 $0.00287
Opus 5 $0.00017 $0.00143
Sonnet 5 $0.00007 $0.00057
Haiku 4.5 $0.00003 $0.00029

Measured 10d ago against content hash 8cc1eb80974e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

tmcp-migration-readiness 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 10d 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.

skills/tmcp-migration-readiness/SKILL.md · 35 lines

What it actually says

TMCP Migration Readiness

Status: experimental. This workflow remains shipped and callable, but its public contract may change.

Use this skill when the user asks for a migration plan, upgrade readiness review, deprecation cleanup plan, compatibility audit, large refactor sequencing, or rollback/cutover readiness.

Do not use it for small isolated edits that do not need sequencing or rollback thinking.

Workflow

  1. Gather evidence: current and target states, compatibility constraints, affected modules, data/backfill needs, rollout order, rollback path, and validation commands.
  2. Invoke tmcp_explain for the migration packet.
  3. Invoke expert_rubric_review_plan for readiness and remediation sequencing.
  4. If MCP tools are unavailable, run from the TMCP plugin root:
node scripts/tmcp_launcher.mjs review-plan "Review migration readiness for <project>" --project-path "<project-path>" --evidence-json '<json>' --write-artifacts

Output Contract

Produce or cite:

  • TMCP packet and substance_check.
  • Affected-surface map.
  • Compatibility and rollback gaps.
  • Ordered migration slices.
  • Verification and acceptance gates.
Changes

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.

  1. 10d ago First seen · 35 lines · 34 tokens per session scan A 8cc1eb80974e

Subscribe to this mod's changes

tmcp-migration-readiness is a skill published in the GitHub repository jakyeamos/tmcp (0 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 287 once invoked, about $0.0002 per session on Opus 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 2026-08-31.

Related

Other skills, from other repositories

tdx-quant-docs

A reference guide for TdxQuant, a Python framework built around the Tongda Xin financial terminal for collecting Chinese market and financial data. It helps users find the relevant documentation for its tqcenter APIs and trading strategies.

Grid0723/skills · 196 tokens

python-engineering

Discovery wrapper for the canonical Python engineering skill.

ldilov/harness-forge · 13 tokens

vaex

Use this skill for processing and analyzing large tabular datasets (billions of rows) that exceed available RAM. Vaex excels at out-of-core DataFrame operations, lazy evaluation, fast aggregations, efficient visualization of big data, and machine learning on large datasets. Apply when users need to work with large…

eric861129/SKILLS_All-in-one · 100 tokens

fastapi-expert

Use when building high-performance async Python APIs with FastAPI and Pydantic V2. Invoke to create REST endpoints, define Pydantic models, implement authentication flows, set up async SQLAlchemy database operations, add JWT authentication, build WebSocket endpoints, or generate OpenAPI documentation. Trigger terms…

eric861129/SKILLS_All-in-one · 95 tokens

zarr-python

Chunked N-D arrays for cloud storage. Compressed arrays, parallel I/O, S3/GCS integration, NumPy/Dask/Xarray compatible, for large-scale scientific computing pipelines.

eric861129/SKILLS_All-in-one · 42 tokens

geopandas

Python library for working with geospatial vector data including shapefiles, GeoJSON, and GeoPackage files. Use when working with geographic data for spatial analysis, geometric operations, coordinate transformations, spatial joins, overlay operations, choropleth mapping, or any task involving…

eric861129/SKILLS_All-in-one · 125 tokens