Agent skill

V5 Migration

by OpenLitterMap in OpenLitterMap/openlittermap-web

The olm:v5 migration script, UpdateTagsService, batch processing, migratedat, ClassifyTagsService deprecated mappings, and data migration from v4 category tables.

GPL-3.0Auto-check passedDatabases

Install V5 Migration

skills CLI

$ npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install OpenLitterMap/openlittermap-web v5-migration --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/OpenLitterMap/openlittermap-web.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.ai/skills/v5-migration .claude/skills/v5-migration && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "v5-migration" agent skill from https://github.com/OpenLitterMap/openlittermap-web/tree/master/.ai/skills/v5-migration into .claude/skills/v5-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "v5-migration", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/OpenLitterMap/openlittermap-web/tree/master/.ai/skills/v5-migration

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install OpenLitterMap/openlittermap-web v5-migration --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/OpenLitterMap/openlittermap-web.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.ai/skills/v5-migration .agents/skills/v5-migration && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "v5-migration" agent skill from https://github.com/OpenLitterMap/openlittermap-web/tree/master/.ai/skills/v5-migration into .agents/skills/v5-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "v5-migration", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install OpenLitterMap/openlittermap-web v5-migration --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/OpenLitterMap/openlittermap-web.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.ai/skills/v5-migration .cursor/skills/v5-migration && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "v5-migration" agent skill from https://github.com/OpenLitterMap/openlittermap-web/tree/master/.ai/skills/v5-migration into .cursor/skills/v5-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "v5-migration", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/OpenLitterMap/openlittermap-web.git --path .ai/skills/v5-migration

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install OpenLitterMap/openlittermap-web v5-migration --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/OpenLitterMap/openlittermap-web.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.ai/skills/v5-migration .gemini/skills/v5-migration && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "v5-migration" agent skill from https://github.com/OpenLitterMap/openlittermap-web/tree/master/.ai/skills/v5-migration into .gemini/skills/v5-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "v5-migration", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install OpenLitterMap/openlittermap-web v5-migration

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/OpenLitterMap/openlittermap-web.git skills-src && mkdir -p .github/skills && cp -r skills-src/.ai/skills/v5-migration .github/skills/v5-migration && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "v5-migration" agent skill from https://github.com/OpenLitterMap/openlittermap-web/tree/master/.ai/skills/v5-migration into .github/skills/v5-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "v5-migration", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install OpenLitterMap/openlittermap-web v5-migration --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/OpenLitterMap/openlittermap-web.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.ai/skills/v5-migration .opencode/skills/v5-migration && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "v5-migration" agent skill from https://github.com/OpenLitterMap/openlittermap-web/tree/master/.ai/skills/v5-migration into .opencode/skills/v5-migration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "v5-migration", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: v5-migration
GitHub stars: 134
Token cost: ~1.7k tokens
SKILL.md length: 388 words
Files: 1
Skills in repo: 16
Repo updated: Sep 14, 2026
First seen: Oct 7, 2026
Licence: GPL-3.0

At a glance

The olm:v5 migration script, UpdateTagsService, batch processing, migratedat, ClassifyTagsService deprecated mappings, and data migration from v4 category tables.

Works in 5 steps: migrated_at prevents reprocessing. Once… → Migration is per-user, batched. Default… → Three-step per photo:… → …
Tasks that involve Database migrations
SKILL.md covers Key Files, Invariants, Patterns and Post-Migration Fix: Orphaned…, plus 1 more section
Calls php

What it does

V5 Migration is an agent skill from OpenLitterMap/openlittermap-web. The olm:v5 migration script, UpdateTagsService, batch processing, migratedat, ClassifyTagsService deprecated mappings, and data migration from v4 category tables.

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Databases, covering Database migrations and Data pipelines and ETL. It works with PHP and Laravel. The repository describes itself as: https://opengeospatialdata.springeropen.com/articles/10.1186/s40965-018-0050-y. The licence is GPL-3.0.

When your agent uses it

Tasks that involve Database migrations
Tasks that involve Data pipelines and ETL

Example prompts

“/v5-migration”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

migrated_at prevents reprocessing. Once set, the photo is skipped on subsequent runs. Re-running processes 0 photos.
Migration is per-user, batched. Default 500 photos per batch. Memory managed with gc_collect_cycles() between users.
Three-step per photo: UpdateTagsService::updateTags() -> GeneratePhotoSummaryService::run() -> MetricsService::processPhoto() -> mark…
Errors are logged and skipped. A failed photo doesn't halt the migration. The next run retries it (no migrated_at set).
Seeds reference tables if empty. Categories, brands, achievements seeded on first run.

What it can do on your machine

Read from SKILL.md and the folder at commit ac688aa. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- php
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

V5 Migration loads about 1.7k tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 388 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~44
When it runs · the whole SKILL.md, loaded when a task matches: ~1.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from OpenLitterMap/openlittermap-web at commit ac688aa, republished under its GPL-3.0 licence (© OpenLitterMap). 388 words, ~1,683 tokens.

Download SKILL.mdSave it as .claude/skills/v5-migration/SKILL.md (or your agent's skills folder).

name: v5-migration
description: The olm:v5 migration script, UpdateTagsService, batch processing, migrated_at, ClassifyTagsService deprecated mappings, and data migration from v4 category tables.

V5 Migration

php artisan olm:v5 migrates photos from v4 category-based tags (14 separate tables like smoking, food, coffee) to v5 normalized PhotoTags. Processes per-user, in batches, with idempotency via migrated_at.

Key Files

app/Console/Commands/tmp/v5/Migration/MigrationScript.php — Artisan command
app/Services/Tags/UpdateTagsService.php — Per-photo v4->v5 conversion
app/Services/Tags/ClassifyTagsService.php — Tag classification + deprecated key mapping
app/Services/Tags/GeneratePhotoSummaryService.php — Summary JSON + XP after migration
app/Services/Achievements/Tags/TagKeyCache.php — Cached tag ID lookups
app/Services/Metrics/MetricsService.php — Processes metrics post-migration

Invariants

migrated_at prevents reprocessing. Once set, the photo is skipped on subsequent runs. Re-running processes 0 photos.
Migration is per-user, batched. Default 500 photos per batch. Memory managed with gc_collect_cycles() between users.
Three-step per photo: UpdateTagsService::updateTags() -> GeneratePhotoSummaryService::run() -> MetricsService::processPhoto() -> mark migrated_at.
Errors are logged and skipped. A failed photo doesn't halt the migration. The next run retries it (no migrated_at set).
Seeds reference tables if empty. Categories, brands, achievements seeded on first run.

Patterns

Command usage

bash

php artisan olm:v5                    # All users
php artisan olm:v5 --user=123         # Single user
php artisan olm:v5 --batch=1000       # Custom batch size
php artisan olm:v5 --skip-locations   # Skip location cleanup step

Migration flow per photo

php

// UpdateTagsService::updateTags($photo)
public function updateTags(Photo $photo): void
{
    // 1. Read v4 data from old category relationships
    [$tags, $customTagsOld] = $this->getTags($photo);

    // 2. Classify each tag (handles deprecated key mapping)
    $parsed = $this->parseTags($tags, $customTagsOld, $photo->id);
    // Returns: ['groups' => [...], 'globalBrands' => [...], 'customTags' => [...]]

    // 3. Create v5 PhotoTag + PhotoTagExtraTags records
    $this->createPhotoTags($photo, $parsed);
}

Tag parsing (v4 -> v5 classification)

php

// Input: ['smoking' => ['butts' => 5, 'cigaretteBox' => 1], 'brands' => ['marlboro' => 3]]

// For each tag:
$result = $this->classifyTags->classify($tagKey);
// 1. Check normalizeDeprecatedTag() — maps old keys to new + materials
// 2. Look up Category by key
// 3. Look up LitterObject by key (or auto-create as crowdsourced)
// 4. Return classification with materials list

// Output groups structure:
[
    'groups' => [
        'smoking' => [
            'category_id' => 2,
            'objects' => [
                ['id' => 45, 'key' => 'butts', 'quantity' => 5, 'materials' => ['plastic', 'paper']],
            ]
        ]
    ],
    'globalBrands' => [['id' => 12, 'key' => 'marlboro', 'quantity' => 3]],
    'customTags' => [...]
]

TagKeyCache preloading

php

// Called once at script startup for performance
TagKeyCache::preloadAll();

// Three-layer cache: in-memory array -> Redis hash (24h TTL) -> database
$id = TagKeyCache::idFor('material', 'glass');         // fast lookup
$id = TagKeyCache::getOrCreateId('material', 'glass'); // upsert if missing

Memory management

php

// In migration loop:
DB::disableQueryLog();           // Prevent query log from growing
gc_collect_cycles();             // Between users
// Batch stats: time, speed (photos/sec), memory delta per batch

MigrationScript command structure

php

protected $signature = 'olm:v5
    {--skip-locations : Skip the locations cleanup step}
    {--user= : Specific user ID to migrate}
    {--batch=500 : Number of photos per batch}';

public function handle(): int
{
    $this->ensureProcessingColumns();  // Add processed_* if missing
    $this->seedReferenceTables();      // Categories, brands, achievements
    TagKeyCache::preloadAll();
    DB::disableQueryLog();
    $this->runMigration();             // Per-user, batched
}

Post-Migration Fix: Orphaned Tags (2026-04-04)

The v5 migration left 189,518 photo_tags rows with category_litter_object_id = NULL because DEPRECATED_TAG_MAP mapped v4 keys to composite names (e.g. beerCan → beer_can) instead of decomposing into object + type (e.g. alcohol.can + type beer). The fallback created runtime litter_objects (crowdsourced=1) without CLO relationships.

Fix commands:

php artisan olm:fix-orphaned-tags — Remaps 71 orphan LOs to canonical CLO/LO/type targets. 74 mapping entries (3 multi-category splits). Batched, transacted, idempotent. Supports --apply, --verify-only, --log.
php artisan olm:regenerate-summaries --orphan-fix — Regenerates stale summaries for affected photos. Chunked via chunkById, resumable (skips photos with non-null clo_id in summary), Photo::withoutEvents().
php artisan olm:reprocess-metrics --from-file=<ids> — Delta-based MetricsService reprocess for ~1,041 photos with XP changes (special object bonus corrections).

Key files:

app/Console/Commands/tmp/v5/Migration/FixOrphanedTags.php
app/Console/Commands/tmp/v5/Migration/RegenerateSummaries.php
app/Console/Commands/tmp/v5/Migration/ReprocessPhotoMetrics.php
readme/TagsCleanupPostMigration.md — Full mapping tables and judgment calls
readme/changelog/production-orphan-fix-runbook.md — Production execution steps

Show full SKILL.md (106 more words)Show less

Common Mistakes

Removing migrated_at check. This is the idempotency guard. Without it, photos get double-migrated.
Running without TagKeyCache::preloadAll(). Cold lookups hit the database per tag. Preload caches first.
Not calling GeneratePhotoSummaryService after tag creation. Summary must be generated for MetricsService to read.
Assuming all v4 keys map 1:1 to v5. Many v4 keys like beerBottle split into object + materials. normalizeDeprecatedTag() handles this.
Not handling deprecated category keys. ClassifyTagsService::CATEGORY_ALIASES resolves old category keys: coastal→marine, trashdog→pets, dogshit→pets, automobile→vehicles, pathway→unclassified, drugs→unclassified, political→unclassified, stationery→unclassified. The public getCategory(string $rawKey) method checks aliases before DB lookup.
Processing brands inline. Brands are deferred to globalBrands array — not attached to specific objects during migration.

Files

Just SKILL.md in .ai/skills/v5-migration of OpenLitterMap/openlittermap-web.

Open the folder on GitHubat commit ac688aa

Compare with similar skills

V5 Migration next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

V5 Migration compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
V5 Migration this skillOpenLitterMap/openlittermap-web	134	—	~1.7k	Automated safety check: Pass	GPL-3.0	23 days ago
Data Migrationrevfactory/harness-100	1.3k	—	~1.8k	Automated safety check: Pass	Apache-2.0	6 mo ago
MigrationJaguarJack/catch-admin	935	—	~474	Automated safety check: Pass	Apache-2.0	21 days ago
Migratesoftspark/ai-toolkit	179	—	~1.3k	Automated safety check: Notes	Apache-2.0	today
Configuring Horizoncoollabsio/coolify	63k	4 repos	~898	Automated safety check: Pass	MIT	today
Geoflowyaojingang/GEOFlow	3.8k	—	~722	Automated safety check: Pass	AGPL-3.0	6 days ago

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Questions about V5 Migration

What does V5 Migration do?

The olm:v5 migration script, UpdateTagsService, batch processing, migratedat, ClassifyTagsService deprecated mappings, and data migration from v4 category tables. V5 Migration is an agent skill from OpenLitterMap/openlittermap-web. The olm:v5 migration script, UpdateTagsService, batch processing, migratedat, ClassifyTagsService deprecated mappings, and data migration from v4 category tables.

When should I use V5 Migration?

V5 Migration fits situations like: tasks that involve Database migrations; tasks that involve Data pipelines and ETL.

How do I install V5 Migration in Claude Code?

Run `npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a claude-code`. Or copy the skill folder (.ai/skills/v5-migration in OpenLitterMap/openlittermap-web) into .claude/skills/v5-migration in your project. Claude Code loads it when a task matches its description.

How do I install V5 Migration in Codex?

Run `npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a codex`. Or copy the skill folder (.ai/skills/v5-migration in OpenLitterMap/openlittermap-web) into .agents/skills/v5-migration in your project. Codex loads it when a task matches its description.

Can I use V5 Migration in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add OpenLitterMap/openlittermap-web --skill v5-migration -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/v5-migration, .gemini/skills/v5-migration, .github/skills/v5-migration and .opencode/skills/v5-migration in your project.

What does V5 Migration need to run?

Going by SKILL.md and its folder, V5 Migration needs the command-line tools its instructions call (php).

Does V5 Migration access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is V5 Migration safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does V5 Migration use?

V5 Migration is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does V5 Migration use?

About 1.7k tokens (SKILL.md is roughly 6.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to V5 Migration?

Skills that share tags, products or a category with V5 Migration: Data Migration (revfactory/harness-100, 1.3k stars), Migration (JaguarJack/catch-admin, 935 stars), Migrate (softspark/ai-toolkit, 179 stars) and Configuring Horizon (coollabsio/coolify, 63k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains V5 Migration?

OpenLitterMap (a GitHub organization) maintains it in OpenLitterMap/openlittermap-web, which has 134 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on September 14, 2026.

Source: OpenLitterMap/openlittermap-web on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install V5 Migration

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

V5 Migration

Key Files

Invariants

Patterns

Command usage

Migration flow per photo

Tag parsing (v4 -> v5 classification)

TagKeyCache preloading

Memory management

MigrationScript command structure

Post-Migration Fix: Orphaned Tags (2026-04-04)

Common Mistakes

Files

Compare with similar skills

Similar skills

More from OpenLitterMap/openlittermap-web

Related

Questions about V5 Migration