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fix(session): drop the <context> envelope and project context verbatim

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context/message previously defaulted to a <context source="…">…</context>
wrapper. No model is trained on a <context> tag either, and message
framing does not belong on the session surface: the surface projects the
durable log, and a caller that wants a frame formats its own content —
which the one heavy producer (workspace-context) already does with its own
<system-reminder> frame, opting out via 'raw'. The tag only added
machinery — ContextEnvelope plus an envelope field threaded through
InjectOptions, HookContext, the context/message event, and the agent-loop
inject/additionalContexts plumbing.

context/message now projects its content verbatim as a user-role message,
sharing one deriveEventMessage case with user/message and steering/message.
ContextEnvelope and every envelope field are removed; context/message.meta
still carries durable, model-hidden JSON state. Regenerated catalogs and
website API; refreshed the three affected keyless snapshots (envelope field
only; timestamps unchanged).

Broadens and renames the steering Agent Note to cover both envelope
removals as one decision.

Agent Note: .agents/notes/implemented/simplification/2026-07-20-unwrap-injected-content-envelopes.md
This commit is contained in:
Turtle
2026-07-20 14:37:04 +08:00
parent b25b78fd02
commit f593ef5ab5
47 changed files with 230 additions and 266 deletions
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9
packages/core/agent-loop/tests/loop.spec.ts
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@@ -385,10 +385,10 @@ describe('agent loop', () => {
await waitForIdle(ctx, agent)
const flat = JSON.stringify(adapter.requests[0]!.messages)
expect(flat).toContain('file changed: a.ts')
expect(flat).toContain('<context source=\\"plugin\\">')
expect(flat).not.toContain('<context source=')
})
it('inject() can persist raw structured context without the generic context envelope', async () => {
it('inject() persists structured context content verbatim with durable hidden meta', async () => {
const adapter = new MockAdapter([textResponse('ok')])
const ctx = await harness(adapter)
const agent = ctx.agentLoop.create(SessionId('raw-context'), { provider: 'mock', model: 'mock' })
@@ -401,14 +401,13 @@ describe('agent loop', () => {
agent.inject([{ type: 'text', text }], {
source: { kind: 'plugin', plugin: 'workspace-context' },
envelope: 'raw',
meta,
})
send(agent, 'go')
await waitForIdle(ctx, agent)
const contextEvent = agent.session.events.find(event => event.type === 'context/message')
expect(contextEvent?.type === 'context/message' && contextEvent.data).toMatchObject({ envelope: 'raw', meta })
expect(contextEvent?.type === 'context/message' && contextEvent.data).toMatchObject({ meta })
const requestText = JSON.stringify(adapter.requests[0]!.messages)
expect(requestText).toContain('Additional instructions from: pkg/AGENTS.md')
expect(requestText).not.toContain('<context source=')
@@ -432,7 +431,6 @@ describe('agent loop', () => {
const first = { type: 'text' as const, text: 'mid-turn notice' }
agent.inject([first], {
source: { kind: 'plugin', plugin: 'x' },
envelope: 'raw',
meta,
})
first.text = 'mutated after inject'
@@ -458,7 +456,6 @@ describe('agent loop', () => {
expect(contexts).toHaveLength(2)
expect(result.seq).toBeLessThan(contexts[0]!.seq)
expect(contexts[0]?.type === 'context/message' && contexts[0].data).toMatchObject({
envelope: 'raw',
meta,
})
expect(contexts.flatMap(event => event.type === 'context/message' ? event.data.content : []))