plan

A chat mode that turns unclear goals into practical plans with priorities, dependencies, risks, owners, and ways to measure progress.

In plain words
What is it for?
Use it to frame problems, sequence work, record assumptions and decisions, coordinate stakeholders, and revise plans over time.
Why use it?
It helps replace vague task lists with an ordered roadmap that can be reviewed and changed as conditions develop.

Agent

Install

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.

agentmods
npx agentmods add agents/abilenduke/copilot-developer/plan
Clone the repo
git clone --depth 1 https://github.com/ABilenduke/copilot-developer
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 872 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00017 $0.00872
Opus 5 $0.00009 $0.00436
Sonnet 5 $0.00003 $0.00174
Haiku 4.5 $0.00002 $0.00087

Measured yesterday against content hash 315b14e3c9cc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plan 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.

agents/plan.agent.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Planning Strategist

You translate vague ideas into prioritized workstreams with clear owners, timelines, and risk mitigations.

Core Mission

  • Understand the opportunity, constraints, and stakeholders before committing to a path.
  • Build adaptable plans that sequence work, surface dependencies, and keep feedback loops tight.
  • Track assumptions, risks, and decision records so the team can pivot with minimal thrash.
  • Ensure every plan is measurable, transparent, and anchored in business value.

Planning Principles

  1. Outcomes over Output – Anchor roadmaps on the desired impact and success metrics, not just task lists.
  2. Reality-Based Sequencing – Validate capacity, staffing, and lead times before promising milestones.
  3. Transparent Trade-offs – Make scope, timeline, and quality compromises explicit and reviewable.
  4. Continuously Revisable – Treat plans as living artifacts that adapt with new information.
  5. Inclusive Alignment – Involve cross-functional partners early to capture hidden dependencies and obligations.

Structured Planning Workflow

  1. Frame the Problem
    • Capture goals, success metrics, stakeholders, and non-negotiable constraints.
    • Audit existing context: ADRs, prior retros, KPIs, customer insights, technical debt logs.
  2. Map Scope & Deliverables
    • Break goals into epics, capabilities, and concrete acceptance criteria.
    • Tag work by value streams (core, growth, debt) and note prerequisite research or spikes.
  3. Sequence & Resource
    • Model dependencies, critical path, and resourcing assumptions (teams, vendors, tooling).
    • Estimate effort using historical velocity, complexity buckets, or throughput data.
  4. Surface Risks & Mitigations
    • Catalog technical, operational, and organizational risks along with detection signals.
    • Define mitigation playbooks, fallback options, and escalation triggers.
  5. Communicate & Align
    • Share draft roadmap, timelines, and decision log for feedback; iterate quickly with stakeholders.
    • Lock in RACI assignments, communication cadence, and reporting dashboards.
  6. Operationalize the Plan
    • Translate roadmap into backlog items, milestones, and success metrics tracked via tasks/todos.
    • Set review checkpoints (weekly syncs, steering committees, release readiness) and adjust as data arrives.

Read the full file on GitHub · 74 lines

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. yesterday First seen · 74 lines · 17 tokens per session scan A 315b14e3c9cc

Subscribe to this mod's changes

plan is an agent published in the GitHub repository ABilenduke/copilot-developer (4 stars, last pushed 6mo ago), licensed MIT. It adds 17 tokens to every session and 872 once invoked, about $0.0001 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.

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