Antigravity IDE

Antigravity IDE is an inventory-only backend for chat. Its persisted conversation artifacts are encrypted, so agentgrep catalogues where they live but cannot read them — --agent antigravity-ide never returns chat recall, at any scope. What you can reach is its Markdown: brain notes, resolved task plans, and skills. For searchable Antigravity history, reach for Antigravity CLI instead.

Base path: ~/.gemini/antigravity (no observed env override).

observed_version: Antigravity 1.104.0 (observed 2026-08-08).

Antigravity IDE is documented as its own backend instead of being folded into Gemini CLI.

Stores

Role:

primary_chat

Format:

protobuf

Coverage:

catalog_only

Adapter:

-

Role:

supplementary_chat

Format:

protobuf

Coverage:

catalog_only

Adapter:

-

inspectable store
inspectable store
Role:

plan

Format:

text

Coverage:

inspectable

Adapter:

antigravity_ide.brain_text.v1

Role:

plan

Format:

text

Coverage:

inspectable

Adapter:

antigravity_ide.brain_resolved_text.v1

inspectable store
inspectable store
Role:

instruction

Format:

md_frontmatter

Coverage:

inspectable

Adapter:

antigravity_ide.skills_text.v1

Role:

app_state

Format:

protobuf

Coverage:

catalog_only

Adapter:

-

Role:

app_state

Format:

json_object

Coverage:

catalog_only

Adapter:

-

Role:

source_tree

Format:

opaque

Coverage:

catalog_only

Adapter:

-

Role:

cache

Format:

opaque

Coverage:

catalog_only

Adapter:

-

antigravity-ide.conversations

antigravity-ide.conversations
catalog store
catalog store
antigravity-ide.conversations

Per-conversation transcripts as loose .pb files. The observed payloads are high-entropy with no extractable UTF-8 runs, no protobuf field framing, and are not gzip/zlib — they appear encrypted or custom-encoded, so agentgrep cannot read them. The encryption is on the loose .pb file, not on protobuf: the sibling user_settings.pb is plaintext protobuf, and the protobuf blobs inside antigravity-cli.conversations SQLite rows still decode. Documented location only; unsupported for search.

Agent:

Antigravity IDE

Role:

primary_chat

Format:

protobuf

Coverage:

catalog_only

Path:

${HOME}/.gemini/antigravity/conversations/<conversation_uuid>.pb

Adapter:

-

Data version:

-

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

antigravity-ide.implicit

antigravity-ide.implicit
catalog store
catalog store
antigravity-ide.implicit

Implicit/background conversation captures as loose .pb files, with the same high-entropy, apparently-encrypted payload shape as antigravity-ide.conversations. Documented location only; unsupported for search.

Agent:

Antigravity IDE

Role:

supplementary_chat

Format:

protobuf

Coverage:

catalog_only

Path:

${HOME}/.gemini/antigravity/implicit/<conversation_uuid>.pb

Adapter:

-

Data version:

-

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

antigravity-ide.brain

antigravity-ide.brain
inspectable store
inspectable store
antigravity-ide.brain

Markdown planning and memory artifacts, not prompt recall.

Agent:

Antigravity IDE

Role:

plan

Format:

text

Coverage:

inspectable

Path:

${HOME}/.gemini/antigravity/brain/**/*.md

Adapter:

antigravity_ide.brain_text.v1

Data version:

antigravity_ide.brain_text.v1

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

Inspectable only; not searched by default.

antigravity-ide.brain_resolved

antigravity-ide.brain_resolved
inspectable store
inspectable store
antigravity-ide.brain_resolved

Expanded task Markdown (task.md.resolved plus numbered .resolved.0..N snapshots) that the **/*.md brain glob cannot reach because of the .resolved suffix. Readable plan text, inspectable opt-in.

Agent:

Antigravity IDE

Role:

plan

Format:

text

Coverage:

inspectable

Path:

${HOME}/.gemini/antigravity/brain/<uuid>/task.md.resolved

Adapter:

antigravity_ide.brain_resolved_text.v1

Data version:

-

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

antigravity-ide.skills

antigravity-ide.skills
inspectable store
inspectable store
antigravity-ide.skills

Markdown skill definitions and instructions, not conversation history.

Agent:

Antigravity IDE

Role:

instruction

Format:

md_frontmatter

Coverage:

inspectable

Path:

${HOME}/.gemini/antigravity/skills/**/*.md

Adapter:

antigravity_ide.skills_text.v1

Data version:

antigravity_ide.skills_text.v1

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

Inspectable only; not searched by default.

antigravity-ide.user_settings

antigravity-ide.user_settings
catalog store
catalog store
antigravity-ide.user_settings

Protobuf user settings. Configuration, not chat content.

Agent:

Antigravity IDE

Role:

app_state

Format:

protobuf

Coverage:

catalog_only

Path:

${HOME}/.gemini/antigravity/user_settings.pb

Adapter:

-

Data version:

-

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

antigravity-ide.mcp_config

antigravity-ide.mcp_config
catalog store
catalog store
antigravity-ide.mcp_config

MCP server configuration. Configuration, not chat content.

Agent:

Antigravity IDE

Role:

app_state

Format:

json_object

Coverage:

catalog_only

Path:

${HOME}/.gemini/antigravity/mcp_config.json

Adapter:

-

Data version:

-

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

antigravity-ide.server

antigravity-ide.server
catalog store
catalog store
antigravity-ide.server

Local IDE server state and binaries. Not conversation history.

Agent:

Antigravity IDE

Role:

source_tree

Format:

opaque

Coverage:

catalog_only

Path:

${HOME}/.antigravity-server/

Adapter:

-

Data version:

-

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

antigravity-ide.cache

antigravity-ide.cache
catalog store
catalog store
antigravity-ide.cache

Staging cache files. Cache state, not conversation history.

Agent:

Antigravity IDE

Role:

cache

Format:

opaque

Coverage:

catalog_only

Path:

${HOME}/.cache/antigravity/staging/

Adapter:

-

Data version:

-

Version strategies:

-

Observed:

Antigravity 1.104.0 (2026-08-08)

Default search:

no

Record schemas

Conversation artifacts (encrypted, unsupported)

antigravity-ide.conversations stores one conversation artifact at conversations/<conversation_uuid>.pb. The payloads are high-entropy bytes with no extractable UTF-8 runs, no protobuf field framing, and no gzip/zlib magic: they are encrypted or custom-encoded, and agentgrep cannot read them. The store is catalogued for storage inventory only and is never searched.

The encryption is on the loose .pb file, not on protobuf. The sibling user_settings.pb is plaintext protobuf, and the protobuf blobs inside antigravity-cli.conversations’ SQLite rows still decode — which is why that store stays readable while this one does not.

Implicit artifacts (encrypted, unsupported)

antigravity-ide.implicit files at implicit/<conversation_uuid>.pb have the same encrypted payload shape and the same catalogue-only treatment.

Brain and skills Markdown

antigravity-ide.brain and antigravity-ide.skills are Markdown planning, memory, and instruction artifacts under brain/**/*.md and skills/**/*.md. They are safe to inventory, but they are not prompt history or chat transcripts and are not searched by default.

Resolved task Markdown

antigravity-ide.brain_resolved covers expanded task Markdown at brain/<uuid>/task.md.resolved plus numbered .resolved.0..N snapshots. The .resolved suffix keeps it outside the **/*.md brain glob, so it is catalogued separately as inspectable plan text.