finalize

A checklist for finishing software changes and ending a coding task. It covers reviewing changes, fixing related problems, updating affected documentation, and offering further validation.

In plain words
What is it for?
Use it after making code changes to inspect the result, clean up clearly related dead code, update relevant docs, and suggest tests or a deeper review when available.
Why use it?
It reduces the chance of leaving bugs, unused code, or outdated documentation behind after a change.

Cursor rule for Cursor

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 rules/zackiles/deno-kit/finalize
Clone the repo
git clone --depth 1 https://github.com/zackiles/deno-kit

Made for: Cursor.

Per session 7 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 347 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 $0.00007 $0.00347
Opus 5 $0.00003 $0.00173
Sonnet 5 $0.00001 $0.00069
Haiku 4.5 $0.00001 $0.00035

Measured yesterday against content hash d1cfa1bd4bef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

finalize 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.

.cursor/rules/finalize.mdc · 15 lines

What it actually says

Steps to Follow at the End of Generating Code or Making Changes

  1. Review all changes made in this turn of the message to see if the files or dependent files we modified had bugs, linting errors, or issues introduced from our changes, or if the objective wasn't met, and fix it.

  2. Remove old, dead, or otherwise unused code that is clearly related to our change. Otherwise, let the user know if you find unreferenced code that wasn't related to our change that they might want you to clean up.

  3. Update project documentation that is clearly related to this work or refers to this work if our changes made information related to the change outdated or innacurate.

  4. After you've compelted all steps, at the end of your message confirming to the human the work was done, provide them the following two options if they'd like to continue the conversation: a) ask if they'd like you to run {x} test to validate the thing you did if a test or a way to check if the work was does exists, and b) ask if they'd like you to increase the depth and breadth of your investgiation into validating if the previous changes were applied correctly and didn't introduce any regressions. If they say yes, then repeat these steps by exanding deeper into individual code files, and outward into related files in the graph.

NOTE: If you feel a round of investigation was unable to identify anything concderning ensure you let the user know that and provide them evidence of why you think there is nothing concerning.

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 · 15 lines · 7 tokens per session scan A d1cfa1bd4bef

Subscribe to this mod's changes

finalize is a cursor rule published in the GitHub repository zackiles/deno-kit (3 stars, last pushed 5mo ago), licensed MIT. It adds 7 tokens to every session and 347 once invoked, about $0.0000 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.