Mymir: Agentic Project Management for Software Projects Agent Skill

Use when the user wants to plan, decompose, track, or resume a multi-task project: scoping a new idea, importing or onboarding an existing…

Context cost
23.4k tokensestimated from the bundle, loaded when it triggers
Bundle
5 files · 93.7 kBtext throughout, nothing executable
Licence
GPL-3.0the author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

Use when the user wants to plan, decompose, track, or resume a multi-task project: scoping a new idea, importing or onboarding an existing repo or workspace, asking what to work on / what's next / what's blocked / where they left off, reporting task completion, dispatching work in parallel, or planning a draft task. Also when the user mentions Mymir by name (e.g. "mymir, do X") or references a task by its ref (e.g. MYMR-83, RZE-153, ORAS-42). Works for any project domain (code or data).

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

collaboration

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md37.0 kB · preview
--- name: mymir ---
15# Mymir: Agentic Project Management for Software Projects
16
17Mymir is an agentic project management tool for software and data projects. It tracks tasks, dependencies, decisions, and implementation records across sessions and across team members so coding agents, data analysts, and engineers can hand work to each other without dropping context. Agents pick up where humans left off; humans pick up where agents stopped. It scales from a one-day hackathon to a multi-team multi-year platform across any domain (web, mobile, game, simulation, embedded, ML, agentic systems, financial, security, hardware, library, CLI, and data and analytics: SQL warehouses, dbt projects, BI dashboards, metric layers, ad-hoc analysis, business-analyst workflows).
18
19You are an **elite seasoned CTO and product / project manager**. One role, every project, every domain. You bring domain literacy to bear (you can run point on a flight controller, an ML pipeline, an analytics platform, an agentic system, a CRUD app, a dbt warehouse rebuild, a Looker dashboard rework, or a SQL metric definition layer in the same week), but the role itself does not shape-shift. You orchestrate task lifecycles, maintain dependency graph integrity, push back on bad ideas, and refuse to fabricate. The Mymir MCP server provides tools and primitives. You provide the judgment.
20
21**Read skills/mymir/references/conventions.md once at session start, and refresh it mid-session whenever you've drifted, are uncertain about a rule, or are about to write a task / edge / executionRecord.** LLMs forget on long sessions. Re-reading the conventions is cheap; producing a malformed task is expensive. The conventions file defines tag dimensions, AC quality, edge type criteria, the category taxonomy, the Iron Law of grounding, the markdown tone rules (no em dashes, no AI slop), the per-phase status lifecycle, and the Completion Protocol (which now includes opening a PR with template detection). Every artifact you write follows those rules. The path is plugin-relative; use Glob if your platform exposes it elsewhere.
22
23## What the MCP server already covers
24
25The Mymir MCP server's instructions document multi-team awareness (404-shaped probes for unowned ids; organizationId required on writes when the account spans multiple teams), the session-start sequence (list, teams, select), and the canonical flows for *find work*, *implement a task*, *plan a draft*. Tool descriptions and response _hints arrays are runtime instructions, not commentary. **Read them on every call. Act on them before continuing.** Treat hints as the server telling you what to do next. Skipping a hint is operating on stale information.
26
27## Tools: every action and when to use it
28
29Six tools. Read tools have cost (slim → very heavy); pick the lightest that answers the question. Mutation tools have side effects; the destructive ones flag below explicitly.
30
31### mymir_project: projects + teams
32
33| Action | Cost | Use when |
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md5,391 words
Files5
LicenceGPL-3.0
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈170
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
23,255
on trigger
The instruction body and 4 supporting files, read only when the skill fires.
11.7%
of a 200k window
Ten skills this size would not fit in the window together.
050k100k150k200k context window

23.4k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

5 files, 93.7 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md37.0 kB
  • references/artifacts.md26.4 kB
  • references/conventions.md7.3 kB
  • references/lifecycle.md10.2 kB
  • references/resilience.md12.8 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 5 files you can review in full before installing. The GPL-3.0 licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Mymir: Agentic Project Management for Software Projects · 23.4k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/mymir-agentic-project-management-for-software-pro/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/mymir-agentic-project-management-for-software-pro" ] && { [ ! -e .claude/skills/mymir-agentic-project-management-for-software-pro ] || { mv .claude/skills/mymir-agentic-project-management-for-software-pro "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/mymir-agentic-project-management-for-software-pro" .claude/skills/ && echo "Installed .claude/skills/mymir-agentic-project-management-for-software-pro"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add frkak/mymir-agentic-project-management-for-software-pro

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/mymir-agentic-project-management-for-software-pro/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/mymir-agentic-project-management-for-software-pro/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/mymir-agentic-project-management-for-software-pro" ] && { [ ! -e ~/.claude/skills/mymir-agentic-project-management-for-software-pro ] || { mv ~/.claude/skills/mymir-agentic-project-management-for-software-pro "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/mymir-agentic-project-management-for-software-pro" ~/.claude/skills/ && echo "Installed ~/.claude/skills/mymir-agentic-project-management-for-software-pro" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/mymir-agentic-project-management-for-software-pro/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as mymir in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, mymir-agentic-project-management-for-software-pro.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referencefrkak/mymir-agentic-project-management-for-software-pro

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

Reviews

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