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.
npx agentmods add skills/traftg/opencode-game-studio/changelognpx skills add TraftG/opencode-game-studio --skill changeloggit clone --depth 1 https://github.com/TraftG/opencode-game-studioWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/traftg/opencode-game-studio/changelog)<a href="https://agentmods.dev/skills/traftg/opencode-game-studio/changelog"><img src="https://agentmods.dev/badge/skills/traftg/opencode-game-studio/changelog.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00029 | $0.01104 |
| Opus 5 | $0.00015 | $0.00552 |
| Sonnet 5 | $0.00006 | $0.00221 |
| Haiku 4.5 | $0.00003 | $0.00110 |
Grade A, and why
changelog 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.
How it starts
The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
When this skill is invoked:
- Read the argument for the target version or sprint number. If a version is given, use the corresponding git tag. If a sprint number is given, use the sprint date range.
1b. Check git availability — Verify the repository is initialized:
- Run
git rev-parse --is-inside-work-treeto confirm git is available - If not a git repo, inform the user and abort gracefully
-
Read the git log since the last tag or release:
git log --oneline [last-tag]..HEADIf no tags exist, read the full log or a reasonable recent range (last 100 commits).
-
Read sprint reports from
production/sprints/for the relevant period to understand planned work and context behind changes. -
Read completed design documents from
design/gdd/for any new features that were implemented during this period. -
Categorize every change into one of these categories:
- New Features: Entirely new gameplay systems, modes, or content
- Improvements: Enhancements to existing features, UX improvements, performance gains
- Bug Fixes: Corrections to broken behavior
- Balance Changes: Tuning of gameplay values, difficulty, economy
- Known Issues: Issues the team is aware of but have not yet resolved
-
Generate the INTERNAL changelog (full technical detail):
# Internal Changelog: [Version]
Date: [Date]
Sprint(s): [Sprint numbers covered]
Commits: [Count] ([first-hash]..[last-hash])
## New Features
- [Feature Name] -- [Technical description, affected systems]
- Commits: [hash1], [hash2]
- Owner: [who implemented it]
- Design doc: [link if applicable]
## Improvements
- [Improvement] -- [What changed technically and why]
- Commits: [hashes]
- Owner: [who]
## Bug Fixes
- [BUG-ID] [Description of bug and root cause]
- Fix: [What was changed]
- Commits: [hashes]
- Owner: [who]
## Balance Changes
- [What was tuned] -- [Old value -> New value] -- [Design intent]
- Owner: [who]
## Technical Debt / Refactoring
- [What was cleaned up and why]
- Commits: [hashes]
## Known Issues
- [Issue description] -- [Severity] -- [ETA for fix if known]
## Metrics
- Total commits: [N]
- Files changed: [N]
- Lines added: [N]
- Lines removed: [N]
- Generate the PLAYER-FACING changelog (friendly, non-technical):
# What is New in [Version]
## New Features
- **[Feature Name]**: [Player-friendly description of what they can now do
and why it is exciting. Focus on the experience, not the implementation.]
## Improvements
- **[What improved]**: [How this makes the game better for the player.
Be specific but avoid jargon.]
## Bug Fixes
- Fixed an issue where [describe what the player experienced, not what was
wrong in the code]
- Fixed [player-visible symptom]
## Balance Changes
- [What changed in player-understandable terms and the design intent.
Example: "Healing potions now restore 50 HP (up from 30) -- we felt
players needed more recovery options in late-game encounters."]
## Known Issues
- We are aware of [issue description in player terms] and are working on a
fix. [Workaround if one exists.]
---
Thank you for playing! Your feedback helps us make the game better.
Report issues at [link].
- Output both changelogs to the user. The internal changelog is the primary working document. The player-facing changelog is ready for community posting after review.
Guidelines
- Never expose internal code references, file paths, or developer names in the player-facing changelog
- Group related changes together rather than listing individual commits
- If a commit message is unclear, check the associated files and sprint data for context
- Balance changes should always include the design reasoning, not just the numbers
- Known issues should be honest -- players appreciate transparency
- If the git history is messy (merge commits, reverts, fixup commits), clean up the narrative rather than listing every commit literally
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.
- 2d ago First seen · 134 lines · 29 tokens per session scan A a6ac81374cdc
changelog is a skill published in the GitHub repository TraftG/opencode-game-studio (38 stars, last pushed 4mo ago), licensed MIT. It adds 29 tokens to every session and 1,104 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 2026-09-03.
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