finish-plan

A workflow for checking and finalising a written coding plan before it becomes fixed and optionally linked to a tracking issue. The plan must follow a required filename and Markdown structure.

In plain words
What is it for?
Use it to validate plans in an `ai-plans/` folder, check their references and acceptance criteria, and commit a plan only after validation.
Why use it?
It prevents incomplete, wrongly named, or inaccurate plans from being committed before their work is approved and tracked.

Skill for Claude CodeCodex

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 skills/feo2x/guided-coding/finish-plan
Any agent
npx skills add feO2x/guided-coding --skill finish-plan
Clone the repo
git clone --depth 1 https://github.com/feO2x/guided-coding

Made for: Claude Code, Codex.

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 628 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 $0.00029 $0.00628
Opus 5 $0.00015 $0.00314
Sonnet 5 $0.00006 $0.00126
Haiku 4.5 $0.00003 $0.00063

Measured 2d ago against content hash 48dc8491b2fb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

finish-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 2d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

claude-plugin/claude-skills/finish-plan/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Finish a Plan

Finish the plan named by the user. If none is named, proceed only when exactly one uncommitted plan draft exists in ai-plans/; otherwise ask for its path.

1. Validate

Read the repository instructions and confirm that:

  • The filename is either YYYY-MM-DD-HHMM-<issue-id>-<kebab-case-description>.md or, without an issue, YYYY-MM-DD-HHMM-<kebab-case-description>.md.
  • Variable filename segments contain only lowercase ASCII letters, digits, and single hyphens, and do not start or end with a hyphen.
  • The file starts with # Title, followed by exactly ## Rationale, ## Acceptance Criteria, and ## Technical Details, in that order.
  • Every acceptance criterion is an unticked task (- [ ]).
  • Referenced plan documents exist, and claims about existing source files are accurate. Paths for files the plan intends to create are valid references when identified as planned work.

Report validation failures. Fix them only after the user agrees; the Planning Phase is still open until the plan is committed.

2. Commit and freeze

Inspect git status and the staged diff. Preserve unrelated working-tree and staged changes. Stage the plan if needed, then use a path-limited commit so the commit contains only the plan file. Verify the resulting commit's file list before continuing; if it contains anything else, stop and report the problem without rewriting history. Follow repository commit conventions and do not push. The successful commit ends the Planning Phase and freezes the plan.

3. Optionally publish the first plan

The first plan for a tracked issue may become that issue's description. Follow-up plans are not published there.

Use the tracker and target project documented by the repository. If neither is documented, infer them only when the git remote and tracker clearly agree, state the inferred target, and ask the user to confirm it. If the project has no tracker, skip this step.

Read the current issue title and description before asking to publish. Explain that publishing replaces the complete issue description. If it is non-empty, show or summarize what would be replaced and require explicit confirmation to overwrite it. Publish the plan body only. For GitHub:

Read the full file on GitHub · 63 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. 2d ago First seen · 63 lines · 29 tokens per session scan A 48dc8491b2fb

Subscribe to this mod's changes

finish-plan is a skill published in the GitHub repository feO2x/guided-coding (6 stars, last pushed 19d ago), licensed MIT. It adds 29 tokens to every session and 628 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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