CHANGELOG.md

Changelog

All notable changes to Steam Developer Tools will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

1.0.0 - 2026-03-29

Added

• 5 new MCP tools in companion Steam MCP server (v0.6.0), reaching 25 total tools:
  • steam_getNewsForApp — Fetch recent news and announcements for a game (no auth)
  • steam_getSchemaForGame — Achievement/stat schema with display names, descriptions, and icons (API key)
  • steam_getPlayerAchievements — Per-player achievement unlock status and timestamps (API key)
  • steam_getLeaderboardsForGame — List all leaderboards with numeric IDs (API key)
  • steam_clearAchievement — Re-lock/clear an achievement for QA testing (publisher key)
• Skills updated with new tool references: steam-api-reference, steam-achievement-designer, steam-player-stats, steam-leaderboards, steam-community-management, steam-testing-sandbox
• steam-api-key-usage rule updated with GetNewsForApp, GetSchemaForGame, GetPlayerAchievements equivalents

Changed

• Expanded target audience to include modders alongside game developers and power users
• Widened skill triggers for steam-workshop-helper, steam-store-lookup, steam-api-reference, and steam-community-management to activate on modder use cases
• Added modder example interaction to steam-workshop-helper (Workshop upload flow)
• Added "For Modders" callout section in README with relevant tools
• Added "Who Is This For?" section to GitHub Pages site with game dev / modder / power user columns
• Added modder-related prompt cards to the site
• Updated OG card, meta descriptions, and plugin description to include modders
• Added modding, steam-workshop, ugc keywords to plugin.json
• Plugin version bumped to 1.0.0

Fixed

• MCP tool naming — Renamed all 20 MCP tool references from dot notation (steam.getAppDetails) to underscore notation (steam_getAppDetails) across 34 files. Dots conflicted with Cursor's internal MCP bridge routing. Companion steam-mcp server v0.5.0 has the matching rename.
• steam_searchApps parameter — Renamed term to query across all skills, rules, and docs to match steam-mcp server v0.5.1 schema change
• steam_getLeaderboardsForGame auth tier — Corrected from publisher key to standard API key across all docs (companion steam-mcp server v0.6.1)
• steam_getPlayerAchievements error message — Corrected from publisher key boilerplate to free API key + public profile message (companion steam-mcp server v0.6.1)
• Companion steam-mcp server v0.5.1 — steam_getLeaderboardEntries description clarified (numeric ID required), write tools (steam_setAchievement, steam_uploadLeaderboardScore, steam_grantInventoryItem) now return clear error messages when publisher key is missing
• Companion steam-mcp server v0.6.0 — Fixed POST body encoding on publisher tools (params now sent as application/x-www-form-urlencoded body instead of URL query string), removed dead variable in grantInventoryItem

0.9.0 - 2026-03-28

Added

• 4 new MCP read tools in companion Steam MCP server (v0.4.0), reaching the target of 20 total tools:
  • steam_getReviews — Fetch user reviews with filters for language, sentiment, purchase type, and pagination (no auth)
  • steam_getPriceOverview — Batch price check for multiple apps in a specific region (no auth)
  • steam_getAppReviewSummary — Review score, total counts, and positive percentage without individual reviews (no auth)
  • steam_getRegionalPricing — Pricing breakdown across multiple countries/regions (no auth)

Changed

• Plugin version bumped to 0.9.0
• Companion Steam MCP server bumped to 0.4.0 (20 tools: 14 read-only + 6 write/guidance)
• All documentation updated: README, CLAUDE.md, CONTRIBUTING.md, ROADMAP.md

0.8.0 - 2026-03-28

Added

• steam-migration-guide skill: migrating games to Steam from Epic, GOG, itch.io — engine-specific SDK integration (Unity, Unreal, Godot), feature parity mapping, store page strategy, and technical migration checklist
• Common Pitfalls sections added to all 30 skills — each skill now includes 3-6 concise, actionable pitfalls specific to its domain

Changed

• Plugin version bumped to 0.8.0
• Plugin description updated to reflect 30 skills
• All documentation updated: README, CLAUDE.md, CONTRIBUTING.md, ROADMAP.md

0.7.0 - 2026-03-28

Added

• steam-testing-sandbox skill: development sandbox guide — App ID 480 (SpaceWar) usage, test account setup, Steam client console commands, partner test environments, and dev-to-production checklist
• 6 new MCP write tools in companion Steam MCP server (v0.3.0):
  • steam_createLobby — SDK guidance for ISteamMatchmaking lobby creation (C++/C#/GDScript)
  • steam_uploadWorkshopItem — SDK guidance for ISteamUGC Workshop uploads (C++/GDScript)
  • steam_updateWorkshopItem — HTTP POST to update Workshop item metadata via partner API
  • steam_setAchievement — HTTP POST to set/unlock achievements via partner API (dev/test)
  • steam_uploadLeaderboardScore — HTTP POST to upload scores via partner API
  • steam_grantInventoryItem — HTTP POST to grant inventory items via partner API

Changed

• steam-appid-validation rule enhanced with MCP live validation — suggests steam_getAppDetails() to verify App IDs exist
• Plugin version bumped to 0.7.0
• Plugin description updated to reflect 29 skills and 16 MCP tools
• All documentation updated: README, CLAUDE.md, CONTRIBUTING.md, ROADMAP.md

0.6.0 - 2026-03-28

Added

• steam-playtest-setup skill: Steam Playtest feature configuration — open vs closed playtests, key distribution, signup pages, feedback collection, Next Fest integration, and transition to Early Access or launch
• steam-bug-report-template skill: structured bug report templates — Steam system info integration, crash dump collection (Windows/Unity/Unreal), known issues tracking, and Discussion forum integration
• steam-anticheat-integration skill: anti-cheat setup — EasyAntiCheat (EAC), BattlEye, and VAC integration with Proton/Linux compatibility matrix, Steam Deck considerations, and server-side validation patterns
• steam-save-compat rule: flags save file practices that break cross-platform Steam Cloud sync — binary endianness, OS-specific paths, hardcoded separators, non-portable serialization
• steam-network-security rule: flags insecure networking patterns — unvalidated auth tickets, missing session management, trusting client data, missing encryption
• steam-api-error-handling rule: flags missing error/callback handling for Steamworks SDK — unchecked SteamAPI_Init(), missing StoreStats(), ignored callbacks, missing SteamAPI_RunCallbacks()

Changed

• Plugin version bumped to 0.6.0
• Plugin description updated to reflect 28 skills and 9 rules
• All documentation updated: README, CLAUDE.md, CONTRIBUTING.md, ROADMAP.md

0.5.0 - 2026-03-28

Added

• steam-community-management skill: post-launch community tools — announcements, events, discussion forum setup, update post templates, Community Hub configuration, and communication cadence guidance
• steam-store-page-optimizer skill: store page best practices — capsule image specs (all 9 sizes), description structure, tag strategy, trailer guidance, demo setup, screenshot optimization, and full audit checklist
• steam-pricing-strategy skill: data-driven pricing — base price tiers, regional pricing with Valve multipliers, launch discounts, sale participation, bundles, free-to-play considerations, and price change cooldown rules
• steam-dlc-expansion-planning skill: DLC and post-launch content — App ID creation, depot config, season passes, content cadence templates, pricing tiers, and in-game ownership checks (C++/C#/GDScript)

Changed

• Plugin version bumped to 0.5.0
• Plugin description updated to reflect 25 skills
• All documentation updated: README, CLAUDE.md, CONTRIBUTING.md, ROADMAP.md

MCP Roadmap

• steam_getAppReviewSummary({ appid }) - review histogram and summary (planned for MCP server)
• steam_getRegionalPricing({ appid, countries }) - pricing by region (planned for MCP server)

0.4.0 - 2026-03-28

Added

• steam-build-automation skill: SteamPipe CI/CD integration with GitHub Actions, GitLab CI, and Jenkins pipelines for automated depot uploads, beta branch management, Docker containerized builds, and secrets management
• steam-release-checklist skill: comprehensive pre-release validation checklist covering store page completeness, depot config, achievements, cloud saves, Steam Deck compatibility, pricing, multiplayer, leaderboards, social features, and launch readiness
• steam-steamcmd-helper skill: steamcmd scripting reference with common commands, batch/shell scripts, Docker containerized builds, Steam Guard handling, and troubleshooting guide
• steam-build-config-validation rule: validates VDF build configs for missing depots, mismatched App IDs, invalid file mappings, empty content roots, and setlive safety
• steam-launch-options-check rule: flags launch option issues including missing executables, wrong OS targeting, missing descriptions for multi-launch configs, and invalid type values

Changed

• Plugin version bumped to 0.4.0
• Plugin description updated to reflect 21 skills and 6 rules
• All documentation updated: README, CLAUDE.md, CONTRIBUTING.md, ROADMAP.md

0.3.0 - 2026-03-27

Added

• steam-review-analysis skill: fetch and analyze Steam game reviews - sentiment breakdown, common complaints, comparison across updates, language distribution, review bombing detection
• steam-price-history skill: pricing trends, sale history, regional pricing analysis, price-to-review value scoring, pricing strategy guidance for developers
• steam-market-research skill: genre trend analysis, tag popularity, competitor identification, market gap analysis, viability assessment using Steam store data
• steam-wishlist-estimates skill: estimate wishlists from follower counts and review data using the Boxleiter method, wishlist-to-sales conversion benchmarks, revenue estimation

Changed

• Plugin version bumped to 0.3.0
• Plugin description updated to reflect 18 skills
• All documentation updated: README, CLAUDE.md, CONTRIBUTING.md, ROADMAP.md

MCP Roadmap

• steam_getReviews({ appid, filter, language, count }) - planned for MCP server v0.3.0 (review analysis skill uses curl fallback until available)
• steam_getPriceOverview({ appids, cc }) - planned for MCP server v0.3.0 (price history skill uses getAppDetails with cc parameter until available)

0.2.0 - 2026-03-27

Added

• steam-api-key-usage rule: when the Steam MCP server is available, flags raw curl/fetch calls to Steam API endpoints and suggests the equivalent MCP tool
• Companion Steam MCP Server referenced across all skills (server lives in separate repo)

Changed

• All 14 skills updated: replaced ## MCP Integration (Future) placeholder sections with concrete ## MCP Usage sections referencing the companion Steam MCP server's actual tool signatures
• 6 skills with direct MCP replacements now include "Preferred" callouts in their Workflow sections directing users to MCP tools over curl commands: steam-store-lookup, steam-player-stats, steam-profile-lookup, steam-game-comparison, steam-workshop-helper, steam-leaderboards
• steam-api-reference skill now includes a full catalog of all 10 available MCP tools with parameter signatures and auth requirements
• Plugin description updated to reflect MCP support and 4 rules
• Version bumped to 0.2.0

0.1.0 - 2026-03-26

Added

• steam-store-lookup skill: look up any Steam game by name or App ID, returns store page data (price, reviews, tags, system requirements)
• steamworks-app-config skill: generate and document depot configs, build VDF files, launch options, and DLC setup
• steam-api-reference skill: search Steam Web API and Steamworks SDK documentation with endpoint signatures and code examples
• steam-player-stats skill: query current player counts, achievement stats, leaderboards, and user game libraries
• steam-workshop-helper skill: look up Workshop items and document UGC integration patterns for game developers
• steam-achievement-designer skill: design achievements, generate VDF/JSON config snippets, and get unlock code for C++, C#, and GDScript
• steam-multiplayer-networking skill: lobby creation, matchmaking, Steam Networking Sockets relay, dedicated game servers with C++/C#/GDScript examples
• steam-cloud-saves skill: ISteamRemoteStorage manual cloud and Auto-Cloud configuration, conflict resolution, quota management
• steam-leaderboards skill: create/find leaderboards, upload scores, download entries (global, friends, around-user), Web API queries
• steam-friends-social skill: friends list, rich presence strings, game invites, Steam Overlay control, avatar retrieval
• steam-input-controller skill: ISteamInput action sets, digital/analog bindings, controller glyph retrieval for Xbox/PlayStation/Switch/Steam Deck
• steam-inventory-economy skill: ISteamInventory item schema, drops, crafting, ISteamMicroTxn purchase flow, Steam Item Store, Web API queries
• steam-profile-lookup skill: resolve vanity URLs, fetch player summaries, owned games, recent activity, Steam level, badges, friend lists
• steam-game-comparison skill: side-by-side comparison of price, reviews, player counts, genres, and platforms for multiple Steam games
• steam-appid-validation rule: validates App ID consistency across project files and warns if steam_appid.txt is missing
• steamworks-secrets rule: prevents committing API keys, partner credentials, and auth tokens
• steam-deck-compat rule: flags common Steam Deck compatibility issues (hardcoded resolutions, mouse-only input, anti-cheat, Windows-only paths, missing controller support)
• Plugin manifest, README, CONTRIBUTING guide, and license