sweep-migration-coverage

An agent instruction for checking that a code migration updated every required file. It focuses on listing affected files before assigning bulk changes to another coding agent.

In plain words
What is it for?
Use it when migrating logging calls or test interfaces, especially when a previous automated migration reported completion but left files unchanged.
Why use it?
Searches performed later by a coding agent can miss unusual file names, import paths, or directories. An explicit file list makes the work and its completeness easier to review.

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/bugroger/beastmode/sweep-migration-coverage
Clone the repo
git clone --depth 1 https://github.com/BugRoger/beastmode
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 250 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 $0.00000 $0.00250
Opus 5 $0.00000 $0.00125
Sonnet 5 $0.00000 $0.00050
Haiku 4.5 $0.00000 $0.00025

Measured 2d ago against content hash b88409e36175, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sweep-migration-coverage 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.

.beastmode/context/implement/agents/sweep-migration-coverage.md · 10 lines

What it actually says

Sweep Migration Coverage

Context: logging-cleanup call-site-migration (2026-04-05). Task 2 (migrate createLogger call sites) missed 5 source files. Task 7 (update test files for new Logger interface) missed 2 test files. Both required manual fixup after the subagent reported DONE.

Decision: When writing sweep tasks (migrate all X / replace all Y), the Write Tasks step MUST include a pre-enumerated file list generated by grep before dispatch — not a description of the grep pattern for the agent to run. The task text should read: "These N files require modification: [explicit list]" not "Find and update all files that use X".

Rationale: Subagents run grep at dispatch time and miss files in unusual import paths, named differently from the dominant pattern, or in subdirectories not covered by their initial search scope. Pre-enumeration at Write Tasks time puts the file list in the task text where it's inspectable, and the spec reviewer can verify the list is exhaustive against a second grep pass.

Source: .beastmode/artifacts/implement/2026-04-05-logging-cleanup-call-site-migration.md

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 · 10 lines · 0 tokens per session scan A b88409e36175

Subscribe to this mod's changes

sweep-migration-coverage is an agent published in the GitHub repository BugRoger/beastmode (16 stars, last pushed 4mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 250 tokens. 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 2026-08-30.