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Rename allow_history_mismatch to history_mismatch_policy #26

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Merged
iliaishacked merged 1 commit into from
Feb 25, 2026
Merged

Rename allow_history_mismatch to history_mismatch_policy #26

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12 changes: 8 additions & 4 deletions docs/control/reference/rest_api/headers/security_config.md
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ This header is **optional** and can be used in Headers-Only Mode to fine-tune se
"min_num_tools_for_filtering": 10,
"clear_session_meta": "never",
"max_n_turns": null,
"allow_history_mismatch": null,
"history_mismatch_policy": null,
"clear_history_every_n_attempts": null,
"disable_rllm": true,
"enable_multistep_planning": null,
Expand Down Expand Up @@ -110,13 +110,17 @@ Maximum number of turns allowed in the session. If `null`, unlimited turns are a

### Dual-LLM Only Fields

#### `fsm.allow_history_mismatch`
#### `fsm.history_mismatch_policy`

| Type | Required | Default |
|------|----------|---------|
| `boolean` or `null` | No | `null` |
| `string` or `null` | No | `null` |

Controls behaviour when incoming messages diverge from stored history in stateless mode:

Controls behaviour when incoming messages diverge from stored history in stateless mode. When `true`, the server silently truncates its stored history to the last consistent point and accepts the caller's version. When `false`, the server rejects the request with an error if a mismatch is detected.
- `"reject"`: Reject the request with an error if a mismatch is detected
- `"restart_turn"`: Truncate stored history to the last consistent point and restart the turn
- `"continue"`: Silently accept the caller's version and continue

#### `fsm.clear_history_every_n_attempts`

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4 changes: 2 additions & 2 deletions src/sequrity/control/types/headers.py
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Expand Up @@ -369,9 +369,9 @@ class FsmOverrides(BaseModel):
)

# Dual-LLM only
allow_history_mismatch: bool | None = Field(
history_mismatch_policy: Literal["reject", "restart_turn", "continue"] | None = Field(
default=None,
description="Controls behaviour when incoming messages diverge from stored history in stateless mode. When True, the server silently truncates its stored history to the last consistent point. When False, the server rejects the request with an error if a mismatch is detected.",
description="Controls behaviour when incoming messages diverge from stored history in stateless mode. 'reject' rejects the request with an error, 'restart_turn' truncates stored history to the last consistent point and restarts the turn, 'continue' silently accepts the caller's version and continues.",
)
clear_history_every_n_attempts: int | None = Field(
default=None,
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