Platform Extension MOIM (Minus One Info Message) #5027

tlongwell-block · 2025-10-06T16:14:27Z

Implements ephemeral context injection at the agent boundary to automatically include timestamp and TODO content in LLM context without modifying conversation history.

Problem

Previously, accessing TODO content required explicit todo__read tool calls, cluttering conversation history and consuming tokens. Timestamps were injected via template variables in system prompts, creating inconsistency across different prompt variants and preventing effective prompt caching.

Solution

MOIM (Minus One Info Message) injects contextual information directly into the recent context during agent message preparation. This injection contains:

Current timestamp (always)
TODO content from session metadata (when available)
Any other extension-provided context via the get_moim() trait method

The injection happens in agent.rs at the message preparation stage, ensuring the context is included in the LLM call but never persisted to storage or returned in conversation history.

Architecture Benefits

Zero changes to core data structures (Message, Conversation)
No persistence layer modifications
Clean extension boundaries via the get_moim() trait method
No impact on existing sessions or conversation replay
Extensions can opt-in to MOIM by implementing the trait method

Implementation Details

ExtensionManager::collect_moim() aggregates MOIM content from all active extensions
moim::inject_moim() injects collected MOIM into context
TODO extension implements get_moim() to provide task content
Timestamp injection moved from template variables to MOIM system

Testing

Comprehensive test coverage in crates/goose/tests/moim_tests.rs with proper test isolation using serial_test for tests that modify environment variables.

Migration

Removed todo__read tool (breaking change for recipes using it)
Updated todo__write description to reflect automatic availability
System prompts now receive timestamp via MOIM instead of template variables
Removed {{current_date_time}} template variable from system prompts

User Impact

TODO content is now automatically available in context after writing
No need to explicitly read TODO content, reducing token usage
Cleaner conversation history without repetitive read operations
Consistent timestamp availability across all prompt variants

DOsinga

This looks very promising. I'll have another look later, but meanwhile:

I think you shouldn't bother with finding an insertion point. you are doing this just before sending it to the provider which means that if you make a mistake we'll get a catastrophic error. I think you want to prefix this to the user message just after:

if let Some(session_config) = &session {

block. that way it doesn't go to the storage, but you also don't change the structure of the conversation. you probably don't need a moim.rs then either

I don't think we want a setting for this unless we also have that in the UI and you don't want that. we should not switch this off in the scenario tests as you do right now, we should rerun those and make sure everything is still working
can you remove the LLM comments that don't add anything and cut any tests that don't really test anything

crates/goose/tests/moim_tests.rs

crates/goose-cli/src/commands/acp.rs

crates/goose-cli/src/scenario_tests/scenarios.rs

crates/goose-cli/src/session/output.rs

crates/goose/tests/mcp_integration_test.rs

tlongwell-block · 2025-10-06T18:48:16Z

I think you shouldn't bother with finding an insertion point. you are doing this just before sending it to the provider which means that if you make a mistake we'll get a catastrophic error. I think you want to prefix this to the user message just after:

if let Some(session_config) = &session {

block. that way it doesn't go to the storage, but you also don't change the structure of the conversation. you probably don't need a moim.rs then either

Unfortunately, counting on the user message would make this useless for recipes. Long-context independent work is where Goose needs this feature the most

… testprovider messages. remove useless comment

michaelneale · 2025-10-06T23:25:13Z

if this is adjusting the system message each time - doesn't that mean that there is no prompt caching? (as right at the start the content diverges?) - or do I misunderstand?

DOsinga · 2025-10-07T12:12:25Z

if this is adjusting the system message each time - doesn't that mean that there is no prompt caching? (as right at the start the content diverges?) - or do I misunderstand?

instead of doing that, it is trying to add a synthetic message to the conversation with changeable info towards the bottom of the conversation.

github-actions · 2025-10-08T13:46:22Z

PR Preview Action v1.6.0
🚀 View preview at https://block.github.io/goose/pr-preview/pr-5027/
Built to branch `gh-pages` at 2025-10-08 13:45 UTC. Preview will be ready when the GitHub Pages deployment is complete.

* origin/main: Art vandelay: Import & Export (#5053) docs: misc updates for extensions directory (#5035) updating recipe scanner workflows for detecting recipes from forked repos (#5056) feat(prompt-library): add Smart Meeting Assistant advanced prompt (#4998) (#5031) Allow auto focus and typing while chat is initializing (#5043) docs(blog): Add blog for running Goose in containerized envs (#5052)

* origin/main: Improve Rust analysis output for `analyze` tool (#5072) Remove duplicate prepare_reply_context call (#5063) install react dev tools in development (#4979) Doc: Added powershell installation link to the guide (#5012) draft of new blog post about automating more automation (#5038) Subagent extension selection behavior fix (#5093) Add dev and alpha environment indicator (#5092) docs: add content carousel (#5086) Applied server side call to parse and save recipe (#5022) feat(prompt-library): add Code Documentation Migrator intermediate prompt (#4996) (#5051) Add Messy Column Fixer recipe (#5062) Cleanup temp files (#5081) add openmetadata recipe (#5076) Fix Hacktoberfest Leaderboard (#5080) adding brand guidelines to AGENTS.md (#4887) Fix: Prevent cross-contamination of cache data across analysis modes for `analyze` tool (#5075) fix: remove circular reference (#5018) Introduced a new prompt for content amplification that integrates multi-step workflows using official Goose extensions. Closes Issue #4998 (#5050) Add hint for focus mode when used on file paths for `analyze` tool (#5069) fix: use dynamic port allocation for OAuth server (#5019)

tlongwell-block · 2025-10-15T17:51:01Z

@DOsinga can you take a look again? Think I hit your changes

Though, through benchmarking, I found I had to make the message positioning slightly more complicated again in order to get the best results. But just a little

blackgirlbytes · 2025-10-15T18:16:21Z

hmm, wondering why my team got tagged in this. i dont see any docs changes

…mments, and add JSON schema for todo_write tool

* origin/main: (34 commits) Remove some logging (#5631) Use session IDs as task IDs for subagents instead of UUIDs (#5398) Fix the naming (#5628) fix: default tetrate model is broken, replace with haiku-4.5 (#5535) (#5587) Fetch less and use the right SHA (#5621) feat(ui): add custom macOS dock menu with New Window option (#5099) feat: remove hints from recipe prompts (#5622) docs: October 2025 Community All-Stars spotlight, Hacktoberfest edition (#5625) differentiate debug/release in cache key (#5613) Unify subrecipe and subagent execution through shared recipe pipeline (#5082) Standardize CLI argument flags and update documentation (#5516) Release 1.13.0 fix: move goosehints/AGENTS.md handling to goose, and out of developer extension (#5575) fix: add standard context menu items to prevent empty right-click menu (#5616) Bump openapi in prepare-release (#5611) docs: add access control section to Developer tutorial (#5615) Token state not showing on load, or after message is finished. (#5606) Change the other location too (#5608) feat(ui): bring back quick launcher (#5144) Support platform tools through CLI (#5570) ...

… test

crates/goose-cli/src/scenario_tests/scenario_runner.rs

crates/goose-cli/src/scenario_tests/scenarios.rs

DOsinga · 2025-11-13T20:38:22Z

crates/goose/src/agents/agent.rs

                }

+                let conversation_with_moim = super::moim::inject_moim(
+                    conversation.clone(),


this replaces conversation, so I don't think we need to clone here

DOsinga · 2025-11-13T20:40:13Z

crates/goose/src/agents/extension_manager.rs

+        use chrono::Local;
+
+        let timestamp = Local::now().format("%Y-%m-%d %H:%M:%S").to_string();
+        let mut content = format!("<info-msg>\nDatetime: {}\n", timestamp);


a list with join would be more memory effiicient

crates/goose/src/agents/extension_manager.rs

crates/goose/src/agents/moim.rs

crates/goose/src/agents/todo_extension.rs

crates/goose/src/agents/moim.rs

michaelneale · 2025-11-13T23:18:11Z

I think worth pushing on this as I expect it could help performance a lot and also (I expect) gain more with actual prompt caching.

tlongwell-block · 2025-11-14T14:46:11Z

I think worth pushing on this as I expect it could help performance a lot and also (I expect) gain more with actual prompt caching.

Going to work hard on ensuring safety of this today before merging in and following up on @DOsinga's review. Will try to get it in today

* origin/main: (51 commits) Compaction resiliency improvements (#5618) docs: ask goose button (#5730) Update prompt injection detection metrics (due to errors exporting to datadog) (#5692) Spence/icon2 tokyo drift (#5728) docs: logs rotation and misc updates (#5727) docs: automatic ollama model detection (#5725) Fix context progress bar not resetting after /clear command (#5652) docs: removing double announcements (#5714) docs: mcp sampling support (#5708) hackathon banner (#5710) Fix documentation-only change detection for push events (#5712) Added transaction commits to multi sql functions in session_manager (#5693) fix: improve and simplify tool call chain rendering (#5704) Fix: Always show autocompact threshold ui (#5701) chore: Update governance to include Discord (#5690) Ollama improvements (#5609) feat: add Supabase MCP server to registry (#5629) Unlist VS Code extension tutorials from MCP and experimental sections (#5677) fix: make image processing work in github copilot provider (#5687) fix: do not take into account gitignore in developer mcp (#5688) ...

…plify todo get_moim. Add tool call/response test for moim. Remove local chrono import.

crates/goose/src/agents/moim.rs

* main: scan recipe for security when saving recipe (#5747) feat: trying grok for live test (#5732) Platform Extension MOIM (Minus One Info Message) (#5027) docs: remove hackathon banner (#5756) Fix: Recipes respect the quiet flag (#5743) docs: update cli commands (#5744) Run smoke tests on a free runner (#5745) faster, cheaper (pick two): improve CI workflow and switch to free github runner (#5702) Compaction resiliency improvements (#5618) docs: ask goose button (#5730) Update prompt injection detection metrics (due to errors exporting to datadog) (#5692) Spence/icon2 tokyo drift (#5728) docs: logs rotation and misc updates (#5727) docs: automatic ollama model detection (#5725) Fix context progress bar not resetting after /clear command (#5652) docs: removing double announcements (#5714) docs: mcp sampling support (#5708)

* origin/main: (60 commits) chore: incorporate LF feedback (#5787) docs: quick launcher (#5779) Bump auto scroll threshold (#5738) fix: add one-time cleanup for linux hermit locking issues (#5742) Don't show update tray icon if GOOSE_VERSION is set (#5750) fix: get win node path from registry (#5731) Handle spaces in extension names also (#5770) Remove empty settings card for Scheduling Engine (#5771) fix windows cli build (#5768) fix: Implement a CredentialStore for auth (#5741) blog post: How to Successfully Migrate Your App with an AI Agent (#5762) Simplify finding `goosed` (#5739) More time for goosed (#5746) Match lower case (#5763) scan recipe for security when saving recipe (#5747) feat: trying grok for live test (#5732) Platform Extension MOIM (Minus One Info Message) (#5027) docs: remove hackathon banner (#5756) Fix: Recipes respect the quiet flag (#5743) docs: update cli commands (#5744) ...

* 'main' of github.com:block/goose: (125 commits) Document Mistral AI provider (#5799) docs: Add Community Stars recipe script and txt file (#5776) chore: incorporate LF feedback (#5787) docs: quick launcher (#5779) Bump auto scroll threshold (#5738) fix: add one-time cleanup for linux hermit locking issues (#5742) Don't show update tray icon if GOOSE_VERSION is set (#5750) fix: get win node path from registry (#5731) Handle spaces in extension names also (#5770) Remove empty settings card for Scheduling Engine (#5771) fix windows cli build (#5768) fix: Implement a CredentialStore for auth (#5741) blog post: How to Successfully Migrate Your App with an AI Agent (#5762) Simplify finding `goosed` (#5739) More time for goosed (#5746) Match lower case (#5763) scan recipe for security when saving recipe (#5747) feat: trying grok for live test (#5732) Platform Extension MOIM (Minus One Info Message) (#5027) docs: remove hackathon banner (#5756) ...

Signed-off-by: Blair Allan <[email protected]>

tlongwell-block added 3 commits October 6, 2025 11:47

Platform Extension MOIM (Minus One Info Message)

c22d3f8

update prompts

c821645

remove todo read tool

fd6e6c4

tlongwell-block mentioned this pull request Oct 6, 2025

Add MOIM (Minus One Info Message) for automatic context injection (TODO list and current time) #4833

Closed

tlongwell-block added 3 commits October 6, 2025 12:35

cleanup comments. moim logic in separate file

e9c48e2

comment

5c28a48

comment

250b3c8

tlongwell-block marked this pull request as ready for review October 6, 2025 16:58

tlongwell-block requested a review from DOsinga October 6, 2025 17:14

DOsinga requested changes Oct 6, 2025

View reviewed changes

tlongwell-block added 3 commits October 6, 2025 14:58

changes per review. Remove option to configure moim. Filter moim from…

beb11cd

… testprovider messages. remove useless comment

cargo fmt

0acdc97

dont need serial in goose cli anymore

9ec9fe8

tlongwell-block added 5 commits October 7, 2025 10:00

move moim to very end of history as a user message

7813fb5

clean up comments

7a444c0

Merge main into moim2

d1499c5

filter moim for scenario

599f61c

lint

f85335d

tlongwell-block requested a review from a team as a code owner October 8, 2025 13:43

tlongwell-block force-pushed the moim2 branch from 858cffe to f85335d Compare October 8, 2025 13:44

tlongwell-block added 4 commits October 8, 2025 09:55

dont add moim immediately after tool calls

f099955

moim works better when it is behind the latest message

780e0ad

tlongwell-block added 11 commits November 5, 2025 12:54

Refactor MOIM injection to use Conversation type, remove redundant co…

528282a

…mments, and add JSON schema for todo_write tool

remove datetime from snapshots

fae6e77

moim config

0604895

scenario tests dont work with a dynamic timestamp

b7b00ae

test minimization

94f83e2

simplify injection logic

4853b30

tests

5f228ab

moim disable function tested by scenario tests. dont need a dedicated…

b153859

… test

cleanup

3cdc5be

comment cleanup

7871fa0

DOsinga approved these changes Nov 13, 2025

View reviewed changes

tlongwell-block added 2 commits November 14, 2025 09:48

run fix_conversation before returning moim-enriched conversation. Sim…

2774671

…plify todo get_moim. Add tool call/response test for moim. Remove local chrono import.

DOsinga reviewed Nov 14, 2025

View reviewed changes

crates/goose/src/agents/moim.rs Show resolved Hide resolved

tlongwell-block added 5 commits November 14, 2025 12:05

thread local moim skip in scenario tests. No global/serial changes.

df80a59

simplify tests and insertion logic when no assistant message

a7344a1

whitespace

a954dc6

fmt

282775e

autonomous todo directive

29fc6f5

tlongwell-block merged commit 02ca6f7 into main Nov 16, 2025
19 of 20 checks passed

Surendhar-N-D pushed a commit to Surendhar-N-D/goose that referenced this pull request Nov 17, 2025

Platform Extension MOIM (Minus One Info Message) (block#5027)

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arul-cc pushed a commit to arul-cc/goose that referenced this pull request Nov 17, 2025

Platform Extension MOIM (Minus One Info Message) (block#5027)

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github-actions bot mentioned this pull request Nov 18, 2025

chore(release): release version 1.15.0 (minor) #5780

Merged

BlairAllan pushed a commit to BlairAllan/goose that referenced this pull request Nov 29, 2025

Platform Extension MOIM (Minus One Info Message) (block#5027)

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Signed-off-by: Blair Allan <[email protected]>

Platform Extension MOIM (Minus One Info Message) #5027

Platform Extension MOIM (Minus One Info Message) #5027

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